{"id":636,"date":"2012-08-29T09:31:53","date_gmt":"2012-08-29T09:31:53","guid":{"rendered":"http:\/\/codeatelier.wordpress.com\/?p=259"},"modified":"2016-09-10T14:13:17","modified_gmt":"2016-09-10T14:13:17","slug":"building-dynamic-query-in-mysql-stored-procedure","status":"publish","type":"post","link":"https:\/\/codethataint.com\/blog\/building-dynamic-query-in-mysql-stored-procedure\/","title":{"rendered":"Building Dynamic Query in Mysql Stored Procedure"},"content":{"rendered":"<p><strong>Table Structure<\/strong><\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nCREATE TABLE Areas(AreaName VARCHAR(255),\r\n                    PinCode VARCHAR(255))\r\n                    \r\nINSERT INTO Areas(AreaName, PinCode)VALUES\r\n                 ('Teynampet', '6000018'), \r\n                 ('Ramapuram', '6000089'),\r\n                 ('TNagar', '6000017'), \r\n                 ('Mylapore', '6000014'), \r\n                 ('Gopalapuram', '6000087')\r\n\r\n<\/pre>\n<p><strong>Stored Procedure<\/strong><\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nDROP PROCEDURE IF EXISTS mp_test;\r\nCREATE PROCEDURE mp_test(IN pArea VARCHAR(255))\r\n   BEGIN\r\n      SET @Query = '';\r\n      SET @City  = '';\r\n      SET @Query = 'SELECT PinCode FROM Areas';\r\n\r\n      IF pArea != '' THEN\r\n         SET @City = CONCAT(' WHERE AreaName = &quot;', pArea, '&quot;');\r\n      END IF;\r\n      \r\n      SET @Query = CONCAT(@Query, @City);\r\n\r\n PREPARE stmt FROM @Query;\r\n \r\n EXECUTE stmt;\r\n DEALLOCATE PREPARE stmt;  \r\nEND \r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Table Structure CREATE TABLE Areas(AreaName VARCHAR(255), PinCode VARCHAR(255)) INSERT INTO Areas(AreaName, PinCode)VALUES (&#8216;Teynampet&#8217;, &#8216;6000018&#8217;), (&#8216;Ramapuram&#8217;, &#8216;6000089&#8217;), (&#8216;TNagar&#8217;, &#8216;6000017&#8217;), (&#8216;Mylapore&#8217;, &#8216;6000014&#8217;), (&#8216;Gopalapuram&#8217;, &#8216;6000087&#8217;) Stored Procedure DROP PROCEDURE IF EXISTS mp_test; CREATE PROCEDURE mp_test(IN pArea VARCHAR(255)) BEGIN SET @Query = &#8221;; SET @City = &#8221;; SET @Query = &#8216;SELECT PinCode FROM Areas&#8217;; IF pArea != &#8221; THEN&hellip; <a href=\"https:\/\/codethataint.com\/blog\/building-dynamic-query-in-mysql-stored-procedure\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,87],"tags":[],"class_list":["post-636","post","type-post","status-publish","format-standard","hentry","category-mysql","category-procedures"],"_links":{"self":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts\/636","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/comments?post=636"}],"version-history":[{"count":1,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts\/636\/revisions"}],"predecessor-version":[{"id":1583,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/posts\/636\/revisions\/1583"}],"wp:attachment":[{"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/media?parent=636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/categories?post=636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codethataint.com\/blog\/wp-json\/wp\/v2\/tags?post=636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}