{"id":71,"date":"2026-01-25T16:50:48","date_gmt":"2026-01-25T16:50:48","guid":{"rendered":"https:\/\/charliestelling.co.uk\/?p=71"},"modified":"2026-01-25T16:50:48","modified_gmt":"2026-01-25T16:50:48","slug":"sql-duplicate-indexs","status":"publish","type":"post","link":"https:\/\/charliestelling.co.uk\/?p=71","title":{"rendered":"Sql Duplicate index&#8217;s"},"content":{"rendered":"\n<p class=\"\">&#8212; This shows you all the indexes. Look for duplicates like fk_user_id_1, fk_user_id_2<br><code>SHOW INDEX FROM shifts;<\/code><\/p>\n\n\n\n<p class=\"\">&#8212; Then delete the duplicates one by one<br><code>ALTER TABLE shifts DROP INDEX index_name_here;<\/code><\/p>\n\n\n\n<p class=\"\"><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"\">&#8212; Clean up redundant indexes on &#8216;departments&#8217;<br>ALTER TABLE departments<br>DROP INDEX name_2, DROP INDEX name_3, DROP INDEX name_4, DROP INDEX name_5,<br>DROP INDEX name_6, DROP INDEX name_7, DROP INDEX name_8, DROP INDEX name_9,<br>DROP INDEX name_10, DROP INDEX name_11, DROP INDEX name_12, DROP INDEX name_13,<br>DROP INDEX name_14, DROP INDEX name_15, DROP INDEX name_16, DROP INDEX name_17,<br>DROP INDEX name_18, DROP INDEX name_19, DROP INDEX name_20, DROP INDEX name_21,<br>DROP INDEX name_22, DROP INDEX name_23, DROP INDEX name_24, DROP INDEX name_25,<br>DROP INDEX name_26, DROP INDEX name_27, DROP INDEX name_28, DROP INDEX name_29,<br>DROP INDEX name_30, DROP INDEX name_31, DROP INDEX name_32, DROP INDEX name_33,<br>DROP INDEX name_34, DROP INDEX name_35, DROP INDEX name_36, DROP INDEX name_37,<br>DROP INDEX name_38, DROP INDEX name_39, DROP INDEX name_40, DROP INDEX name_41,<br>DROP INDEX name_42, DROP INDEX name_43, DROP INDEX name_44, DROP INDEX name_45,<br>DROP INDEX name_46, DROP INDEX name_47, DROP INDEX name_48, DROP INDEX name_49,<br>DROP INDEX name_50, DROP INDEX name_51, DROP INDEX name_52, DROP INDEX name_53,<br>DROP INDEX name_54, DROP INDEX name_55, DROP INDEX name_56, DROP INDEX name_57,<br>DROP INDEX name_58, DROP INDEX name_59, DROP INDEX name_60, DROP INDEX name_61,<br>DROP INDEX name_62, DROP INDEX name_63;<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>&#8212; This shows you all the indexes. Look for duplicates like fk_user_id_1, fk_user_id_2SHOW INDEX FROM shifts; &#8212; Then delete the duplicates one by oneALTER TABLE shifts DROP INDEX index_name_here; &#8212; Clean up redundant indexes on &#8216;departments&#8217;ALTER TABLE departmentsDROP INDEX name_2, DROP INDEX name_3, DROP INDEX name_4, DROP INDEX name_5,DROP INDEX name_6, DROP INDEX name_7, DROP [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-71","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/71","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=71"}],"version-history":[{"count":1,"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/71\/revisions"}],"predecessor-version":[{"id":72,"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/71\/revisions\/72"}],"wp:attachment":[{"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=71"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=71"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/charliestelling.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=71"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}