{"id":6919,"date":"2025-08-26T14:11:08","date_gmt":"2025-08-26T10:11:08","guid":{"rendered":"https:\/\/www.temok.com\/blog\/?p=6919"},"modified":"2025-08-26T14:13:37","modified_gmt":"2025-08-26T10:13:37","slug":"inner-join-vs-outer-join","status":"publish","type":"post","link":"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/","title":{"rendered":"Inner Join vs Outer Join: Understanding SQL Joins With Examples"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\"><\/span> <span class=\"rt-time\"> 8<\/span> <span class=\"rt-label rt-postfix\">min read<\/span><\/span><p>Every piece of information should only appear once in a relational database. However, you may have data that is available in many tables that have connection with one another. It&#8217;s critical to understand them before delving into the distinctions between INNER JOIN vs\u00a0OUTER JOIN in SQL queries. JOIN is the process of merging two or more tables into one. One unique kind of connection that has one or more main keys is a linked table. These keys may be column aliases or main keys.<\/p>\n<p>Because it affects the quantity of data retrieved, it is critical to distinguish the difference between INNER JOIN and OUTER JOIN. Whereas OUTER JOIN never loses any data, making it suitable for reporting and analytics, INNER JOIN is appropriate when only the linked records are needed. With the use of straightforward examples, we will go into great depth on OUTER JOIN vs INNER JOIN, and their main distinctions in this blog.<\/p>\n<p>So, keep reading and exploring to learn the inner vs OUTER JOIN SQL differences with examples in 2025.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17056\" src=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Inner-Join-vs-Outer-Join.webp?resize=750%2C500&#038;ssl=1\" alt=\"Inner Join vs Outer Join\" width=\"750\" height=\"500\" srcset=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Inner-Join-vs-Outer-Join.webp?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Inner-Join-vs-Outer-Join.webp?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Inner-Join-vs-Outer-Join.webp?resize=24%2C16&amp;ssl=1 24w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Inner-Join-vs-Outer-Join.webp?resize=36%2C24&amp;ssl=1 36w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Inner-Join-vs-Outer-Join.webp?resize=48%2C32&amp;ssl=1 48w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69d05411187e6\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69d05411187e6\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#What_is_a_Join_in_SQL\" >What is a Join in SQL?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#OUTER_JOIN_vs_INNER_JOIN_Understanding_Both_Joins\" >OUTER JOIN vs INNER JOIN: Understanding Both Joins<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#What_is_an_INNER_JOIN_with_an_Example\" >What is an INNER JOIN with an Example?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#An_Example_For_INNER_JOIN\" >An Example For INNER JOIN<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#What_is_an_OUTER_JOIN_with_an_Example\" >What is an OUTER JOIN with an Example?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#The_LEFT_OUTER_JOIN\" >The LEFT OUTER JOIN<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#Example_of_a_Left_Join\" >Example of a Left Join<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#The_Right_OUTER_JOIN\" >The Right OUTER JOIN<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#Example_of_a_Right_Join\" >Example of a Right Join<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#Full_OUTER_JOIN\" >Full OUTER JOIN<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#INNER_JOIN_vs_OUTER_JOIN_Comparison_Table\" >INNER JOIN vs OUTER JOIN: Comparison Table<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#Investigating_SQL_Joins_in_More_Depth\" >Investigating SQL Joins in More Depth<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#When_to_Use_SQL_INNER_JOIN_vs_OUTER_JOIN\" >When to Use SQL INNER JOIN vs OUTER JOIN\u00a0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#When_To_Use_THE_INNER_JOIN\" >When To Use THE INNER JOIN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#When_To_Use_an_OUTSIDE_JOIN\" >When To Use an OUTSIDE JOIN<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#FAQs_Frequently_Asked_Questions\" >FAQs (Frequently Asked Questions)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#What_Is_The_Difference_Between_INNER_And_OUTER_JOIN\" >What Is The Difference Between INNER And OUTER JOIN?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#When_Should_I_Use_INNER_JOIN_In_SQL\" >When Should I Use INNER JOIN In SQL?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#When_To_Use_OUTER_JOIN_In_SQL\" >When To Use OUTER JOIN In SQL?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.temok.com\/blog\/inner-join-vs-outer-join\/#What_Is_The_Difference_Between_INNER_JOIN_OUTER_JOIN_And_CROSS_JOIN\" >What Is The Difference Between INNER JOIN OUTER JOIN And CROSS JOIN?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_Join_in_SQL\"><\/span><strong>What is a Join in SQL?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As we briefly discussed above, the JOIN operator allows you to merge related information in a variety of ways. Joins may be classified into two primary categories: INNER JOIN and OUTER JOIN in SQL.<\/p>\n<p>Simply said, SQL joins are a method of combining data from two or more tables according to a shared field. There are two kinds of SQL joins.<\/p>\n<p>An INNER JOIN will only retain data from both tables that are connected to one another (in the final table), which is the primary difference between INNER JOIN and OUTER JOIN. In contrast, an OUTER JOIN will retain data in the resultant table that is distinct to the other table in <a href=\"https:\/\/blog.temok.com\/what-is-mysql\/\" target=\"_blank\" rel=\"noopener\">MySQL database<\/a>. Let\u2019s talk about both INNER JOIN vs OUTER JOIN concepts.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"OUTER_JOIN_vs_INNER_JOIN_Understanding_Both_Joins\"><\/span><strong>OUTER JOIN vs INNER JOIN: Understanding Both Joins<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Let&#8217;s discuss what is INNER JOIN and OUTER JOIN in SQL before we discuss their differences.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_an_INNER_JOIN_with_an_Example\"><\/span><strong>What is an INNER JOIN with an Example?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17058\" src=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-INNER-JOIN-with-an-Example.webp?resize=750%2C500&#038;ssl=1\" alt=\"What is an INNER JOIN with an Example\" width=\"750\" height=\"500\" srcset=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-INNER-JOIN-with-an-Example.webp?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-INNER-JOIN-with-an-Example.webp?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-INNER-JOIN-with-an-Example.webp?resize=24%2C16&amp;ssl=1 24w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-INNER-JOIN-with-an-Example.webp?resize=36%2C24&amp;ssl=1 36w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-INNER-JOIN-with-an-Example.webp?resize=48%2C32&amp;ssl=1 48w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>INNER JOIN can retrieve data from two tables with the same ID.<\/p>\n<p>According to an initial criterion, an INNER JOIN only returns the rows that match between the two tables. It uses the ON keyword in SQL to specify a common column between two tables, which is used to merge data from those tables. A row in one table won&#8217;t be included in the result set if it doesn&#8217;t match a row in the other table.<\/p>\n<p>Returning the common rows and records across two tables is the main goal of an INNER JOIN in SQL. This new out-of-process will show the combined results of its search for matching and overlapping data in the tables.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"An_Example_For_INNER_JOIN\"><\/span><strong>An Example For INNER JOIN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17059\" src=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/An-Example-For-INNER-JOIN.webp?resize=382%2C603&#038;ssl=1\" alt=\"An Example For INNER JOIN\" width=\"382\" height=\"603\" srcset=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/An-Example-For-INNER-JOIN.webp?w=382&amp;ssl=1 382w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/An-Example-For-INNER-JOIN.webp?resize=190%2C300&amp;ssl=1 190w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/An-Example-For-INNER-JOIN.webp?resize=15%2C24&amp;ssl=1 15w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/An-Example-For-INNER-JOIN.webp?resize=23%2C36&amp;ssl=1 23w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/An-Example-For-INNER-JOIN.webp?resize=30%2C48&amp;ssl=1 30w\" sizes=\"auto, (max-width: 382px) 100vw, 382px\" \/><\/p>\n<p>Let&#8217;s look at a typical situation where there are two inner OUTER JOIN tables: quantity and product pricing. The product name is the logical column to link the tables on, as it is the common information between the two tables. Certain goods are shared by both tables, while others are exclusive to one and have no counterparts in the other.<\/p>\n<p>Only goods that are common in both tables are returned by an INNER JOIN on goods.<\/p>\n<p><strong>Also Read:<\/strong> <a href=\"https:\/\/blog.temok.com\/sql-vs-mysql\/\" target=\"_blank\" rel=\"noopener\">SQL vs MySQL: Making the Right Database Choice For You<\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_an_OUTER_JOIN_with_an_Example\"><\/span><strong>What is an OUTER JOIN with an Example?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17060\" src=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-OUTER-JOIN-With-an-Example.webp?resize=750%2C500&#038;ssl=1\" alt=\"What is an OUTER JOIN With an Example\" width=\"750\" height=\"500\" srcset=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-OUTER-JOIN-With-an-Example.webp?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-OUTER-JOIN-With-an-Example.webp?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-OUTER-JOIN-With-an-Example.webp?resize=24%2C16&amp;ssl=1 24w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-OUTER-JOIN-With-an-Example.webp?resize=36%2C24&amp;ssl=1 36w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/What-is-an-OUTER-JOIN-With-an-Example.webp?resize=48%2C32&amp;ssl=1 48w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>In addition to the records (or rows) that an INNER JOIN would yield, an SQL join OUTER JOIN additionally returns additional rows for which there is no matching record in the other table. It is the main point of our INNER JOIN vs OUTER JOIN comparison.<\/p>\n<p>Three different kinds of OUTER JOINs exist:<\/p>\n<ul>\n<li>Left Join or Left OUTER JOIN<\/li>\n<li>Right Join or Right OUTER JOIN<\/li>\n<li>Full OUTER JOIN (or even Full Join)<\/li>\n<\/ul>\n<p>The portion of the inner OUTER JOIN data that gets compared, aggregated, and returned is denoted by each of these outer connections. Because some data is shared and other is not, nulls will occasionally be generated throughout this procedure.<\/p>\n<p>The capabilities of an INNER JOIN are expanded by the SQL join OUTER JOIN. They do this by returning both the matched and non-matched rows. To be more precise, they only return the matching rows from the subordinate (inner) tables and all the rows from the dominant (outer) table.<\/p>\n<p><strong>Note:<\/strong> The LEFT JOIN is the one that is essentially used in every version of SQL. However, this isn&#8217;t true for FULL JOIN and RIGHT JOIN, which aren&#8217;t supported by <a href=\"https:\/\/sqlserverbuilds.blogspot.com\/\" target=\"_blank\" rel=\"noopener\">different SQL versions<\/a>.<\/p>\n<p>Let&#8217;s discuss the three types of OUTER JOIN with examples.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"The_LEFT_OUTER_JOIN\"><\/span><strong>The LEFT OUTER JOIN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>All of the data in Table 1 and all of the shared data (the inner portion of the Venn diagram example) will be returned by a left OUTER JOIN, while just the matching data from Table 2 will be returned by a right join.<\/p>\n<h5><span class=\"ez-toc-section\" id=\"Example_of_a_Left_Join\"><\/span><strong>Example of a Left Join<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17061\" src=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Left-Join.webp?resize=364%2C599&#038;ssl=1\" alt=\"Example of a Left Join\" width=\"364\" height=\"599\" srcset=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Left-Join.webp?w=364&amp;ssl=1 364w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Left-Join.webp?resize=182%2C300&amp;ssl=1 182w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Left-Join.webp?resize=15%2C24&amp;ssl=1 15w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Left-Join.webp?resize=22%2C36&amp;ssl=1 22w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Left-Join.webp?resize=29%2C48&amp;ssl=1 29w\" sizes=\"auto, (max-width: 364px) 100vw, 364px\" \/><\/p>\n<p>On the &#8216;left&#8217; (Prices table) of our sample database are two goods, oranges and tomatoes, for which there is no matching record on the &#8216;right&#8217; (Quantities table). These rows with a NULL in the Quantity column are part of the result available in a left join. In the INNER JOIN vs OUTER JOIN, the INNER JOIN and the remaining rows in the result are identical.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"The_Right_OUTER_JOIN\"><\/span><strong>The Right OUTER JOIN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The data from Table 2 and all shared data are returned via a right OUTER JOIN, but only the equivalent data from Table 1\u2014the left join\u2014is returned.<\/p>\n<h5><span class=\"ez-toc-section\" id=\"Example_of_a_Right_Join\"><\/span><strong>Example of a Right Join<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17062\" src=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Right-Join.webp?resize=364%2C606&#038;ssl=1\" alt=\"Example of a Right Join\" width=\"364\" height=\"606\" srcset=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Right-Join.webp?w=364&amp;ssl=1 364w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Right-Join.webp?resize=180%2C300&amp;ssl=1 180w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Right-Join.webp?resize=14%2C24&amp;ssl=1 14w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Right-Join.webp?resize=22%2C36&amp;ssl=1 22w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Example-of-a-Right-Join.webp?resize=29%2C48&amp;ssl=1 29w\" sizes=\"auto, (max-width: 364px) 100vw, 364px\" \/><\/p>\n<p>Like the left join example, a right OUTER JOIN yields all rows from the INNER JOIN as well as two rows from the &#8216;right&#8217; (Quantities table) that don&#8217;t have corresponding entries on the left: broccoli and squash.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Full_OUTER_JOIN\"><\/span><strong>Full OUTER JOIN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17063\" src=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Full-OUTER-JOIN.webp?resize=347%2C605&#038;ssl=1\" alt=\"Full OUTER JOIN\" width=\"347\" height=\"605\" srcset=\"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Full-OUTER-JOIN.webp?w=347&amp;ssl=1 347w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Full-OUTER-JOIN.webp?resize=172%2C300&amp;ssl=1 172w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Full-OUTER-JOIN.webp?resize=14%2C24&amp;ssl=1 14w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Full-OUTER-JOIN.webp?resize=21%2C36&amp;ssl=1 21w, https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Full-OUTER-JOIN.webp?resize=28%2C48&amp;ssl=1 28w\" sizes=\"auto, (max-width: 347px) 100vw, 347px\" \/><\/p>\n<p>The well-known MySQL database management system does not enable full OUTER JOINs, or full joins, which aggregate and return all of the data from multiple tables at a time, regardless of whether there is common information.<\/p>\n<p>Basically, a full join is the duplication of all the requested data in a single database as opposed to several tables. Nulls will be generated in cases when matching data is absent.<\/p>\n<p>These are only the fundamentals; joins may become excess in use for a lot more. Some joins even have the ability to exclude other joins!<\/p>\n<p><strong>Also Read:<\/strong> <a href=\"https:\/\/blog.temok.com\/what-is-mysql-trigger-and-how-to-create-it\/\" target=\"_blank\" rel=\"noopener\">What is MySQL Trigger: How To Create It?<\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"INNER_JOIN_vs_OUTER_JOIN_Comparison_Table\"><\/span><strong>INNER JOIN vs OUTER JOIN: Comparison Table<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Here is the INNER JOIN vs OUTER JOIN comparison table:<\/p>\n<p>There is no output of those entries that do not match the entries of another table.If entries of one table do not have any identical entries with another table, then you will get null values.If a related data entry is necessary as per the customer condition or database design, the INNER JOIN is optional.If a related data entry is not necessary as per the customer requirement or database strategy, then the OUTER JOIN is more appropriate.<\/p>\n<table style=\"border-collapse: collapse; width: 1153px; height: 586px;\">\n<tbody>\n<tr>\n<th style=\"border: 1px solid #000000; background-color: #ff5640; padding: 8px; font-weight: bold; text-align: center;\">INNER JOIN<\/th>\n<th style=\"border: 1px solid #000; background-color: #ff5640; padding: 8px; text-align: center; font-weight: bold;\">OUTER JOIN<\/th>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; background-color: #ffffff; padding: 8px; text-align: center;\">Recover data only if there is a match among the tables.<\/td>\n<td style=\"border: 1px solid #000; background-color: #ffffff; padding: 8px; text-align: center;\">Recover all the data, even if there is no match.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; background-color: #9fafcb; padding: 8px; text-align: center;\">It will not return NULL ideals.<\/td>\n<td style=\"border: 1px solid #000; background-color: #9fafcb; padding: 8px; text-align: center;\">In Full &amp; Right OUTER JOINs, the data will be recovered as NULL standards if there is no data in any of the particular tables.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; background-color: #ffffff; padding: 8px; text-align: center;\">INNER JOIN does not have any type.<\/td>\n<td style=\"border: 1px solid #000000; background-color: #ffffff; padding: 8px; text-align: center;\">OUTER JOIN has three kinds: Left-OUTER JOIN, Right-OUTER JOIN, and Full-OUTER JOIN.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; background-color: #9fafcb; padding: 8px; text-align: center;\">The process will become faster because it only returns corresponding values.<\/td>\n<td style=\"border: 1px solid #000; background-color: #9fafcb; padding: 8px; text-align: center;\">The process will become sluggish because it needs to handle NULL values.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000000; background-color: #ffffff; padding: 8px; text-align: center;\">The results given by the INNER JOIN have the fewest accesses and will be able to update the user necessities.<\/td>\n<td style=\"border: 1px solid #000000; background-color: #ffffff; padding: 8px; text-align: center;\">As you know, OUTER JOIN has dissimilar options such as left, right, and full join, so its procedure must be monitored and checked thoroughly.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000000; background-color: #9fafcb; padding: 8px; text-align: center;\">You can perceive the lack of performance since SQL INNER JOIN is slower.<\/td>\n<td style=\"border: 1px solid #000000; background-color: #9fafcb; padding: 8px; text-align: center;\">OUTER JOINs, particularly left OUTER JOINs, are quicker and provide better performance in most cases.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000000; background-color: #ffffff; padding: 8px; text-align: center;\">The gratification of the INNER JOIN condition is mandatory.<\/td>\n<td style=\"border: 1px solid #000000; background-color: #ffffff; padding: 8px; text-align: center;\">There are no circumstances that we have to see in the OUTER JOIN query necessarily.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000000; background-color: #ffffff; padding: 8px; text-align: center;\">It is a simple process in which the matching entries have no consideration for the left or right tables.<\/td>\n<td style=\"border: 1px solid #000; background-color: #ffffff; padding: 8px; text-align: center;\">In OUTER JOIN between INNER JOIN vs OUTER JOIN, when the entries have a match, it will check whether either ailment is available for the left or right tables. Moreover, the entry has measures accordingly, except for full OUTER JOIN.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Investigating_SQL_Joins_in_More_Depth\"><\/span><strong>Investigating SQL Joins in More Depth<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Understanding how SQL joins affect performance is another essential aspect of the idea. Choosing between INNER JOIN vs OUTER JOIN might affect query performance, especially when working with large datasets. INNER JOIN is usually quicker since it only provides rows with matching values in both tables, which results in a smaller result set. However, OUTER JOIN procedures may use more resources since they have to process and return mismatched entries, which expands the size of the result set.<\/p>\n<p>You must also consider the specific use case while choosing a join type.<\/p>\n<p>LEFT OUTER JOIN, for instance, is useful when you must include every left table entry regardless of whether there is a match in the right table. This is commonly popular in scenarios when it is necessary to show every object combiniton with any potential relationships, like when creating reports. FULL OUTER JOIN rarely comes into play, although it might be useful for complex queries that need the whole dataset from both tables, including non-matched entries.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"When_to_Use_SQL_INNER_JOIN_vs_OUTER_JOIN\"><\/span><strong>When to Use SQL INNER JOIN vs OUTER JOIN\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The actual applications of INNER JOIN vs OUTER JOIN in data retrieval also vary.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_To_Use_THE_INNER_JOIN\"><\/span><strong>When To Use THE INNER JOIN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When you just require the intersecting data from two tables, an INNER JOIN works well. If there are matching entries in both the product and sales <a href=\"https:\/\/blog.temok.com\/types-of-databases\/\" target=\"_blank\" rel=\"noopener\">databases<\/a>, for instance, you may use INNER JOIN to locate goods that have been sold.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_To_Use_an_OUTSIDE_JOIN\"><\/span><strong>When To Use an OUTSIDE JOIN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When you want to return the whole dataset, including rows that aren&#8217;t corresponding, you should use an outside join. For instance, when creating a report that displays all departments, including those without workers, or all employees, including those without a department assignment.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Two of the most popular join families in SQL are INNER JOIN vs\u00a0OUTER JOIN. Understanding their distinctions and unique applications distinguishes a SQL novice from an expert. If you select the incorrect join type, your supervisor will become furious with you. Moreover, the results will become totally inaccurate.<\/p>\n<p>Additionally, while both INNER JOIN and OUTER JOIN in SQL may result in short-term data expenses, the former is more costly due to the increased risk of data loss. Database traffic may temporarily drop as a result of an OUTER JOIN. However,\u00a0 it will swiftly return to its previous level when it will recover all tha data.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs_Frequently_Asked_Questions\"><\/span><strong>FAQs (Frequently Asked Questions)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"What_Is_The_Difference_Between_INNER_And_OUTER_JOIN\"><\/span><strong>What Is The Difference Between INNER And OUTER JOIN?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>OUTER JOIN contains incompatible rows with NULLs filling in the gaps when there is no relevant data in it. On the other hand, INNER JOIN only provides matching rows from both tables.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_Should_I_Use_INNER_JOIN_In_SQL\"><\/span><strong>When Should I Use INNER JOIN In SQL?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>You should use INNER JOIN when you want to retrieve data from two or more tables with matching values in it.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_To_Use_OUTER_JOIN_In_SQL\"><\/span><strong>When To Use OUTER JOIN In SQL?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When you need to extract every entry from one or both of the tables involved in the join\u2014even if the other table has no matching rows\u2014you use an outside join in SQL. An INNER JOIN, on the other hand, only returns rows if there is a match in both tables.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_Is_The_Difference_Between_INNER_JOIN_OUTER_JOIN_And_CROSS_JOIN\"><\/span><strong>What Is The Difference Between INNER JOIN OUTER JOIN And CROSS JOIN?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>You can combine data from two or more tables using SQL&#8217;s INNER JOIN vs\u00a0OUTER JOIN, and CROSS JOIN functions. INNER JOIN can return the only the rows that match in both tables according to a certain criterion. All rows from at least one table and matching rows from the other tables have returned through an OUTER JOIN. All feasible row combinations from both tables have returned via a cross join.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\"><\/span> <span class=\"rt-time\"> 8<\/span> <span class=\"rt-label rt-postfix\">min read<\/span><\/span>Every piece of information should only appear once in a relational database. However, you may have data that is available in many tables that have connection with one another. It&#8217;s critical to understand them before delving into the distinctions between INNER JOIN vs\u00a0OUTER JOIN in SQL queries. JOIN is the process of merging two or [&hellip;]<\/p>\n","protected":false},"author":210,"featured_media":17056,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"pmpro_default_level":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2044],"tags":[4971,4974,944,940,4969,939,4970,4973,945,941,3114,946,943,4972,942],"class_list":["post-6919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-databases","tag-difference-between-inner-join-and-outer-join","tag-example-for-inner-join","tag-full-outer-join","tag-inner-join","tag-inner-join-and-outer-join-in-sql","tag-inner-join-vs-outer-join","tag-inner-outer-join","tag-inner-vs-outer-join-sql","tag-left-outer-join","tag-outer-join","tag-outer-join-vs-inner-join","tag-right-outer-join","tag-sql-database-joins","tag-sql-join-outer-join","tag-sql-joins","pmpro-has-access"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/blog.temok.com\/wp-content\/uploads\/2021\/03\/Inner-Join-vs-Outer-Join.webp?fit=750%2C500&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/posts\/6919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/users\/210"}],"replies":[{"embeddable":true,"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/comments?post=6919"}],"version-history":[{"count":27,"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/posts\/6919\/revisions"}],"predecessor-version":[{"id":17064,"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/posts\/6919\/revisions\/17064"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/media\/17056"}],"wp:attachment":[{"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/media?parent=6919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/categories?post=6919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.temok.com\/blog\/wp-json\/wp\/v2\/tags?post=6919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}