{"id":1152,"date":"2018-01-14T03:21:31","date_gmt":"2018-01-14T10:21:31","guid":{"rendered":"https:\/\/sqltutorial.org\/?page_id=1152"},"modified":"2021-04-30T08:34:11","modified_gmt":"2021-04-30T15:34:11","slug":"sql-comparison-functions","status":"publish","type":"page","link":"https:\/\/www.sqltutorial.org\/sql-comparison-functions\/","title":{"rendered":"SQL Comparison Functions"},"content":{"rendered":"\n

This section provides you with the SQL comparison functions including COALESCE, DECODE, and NULLIF.
\n<\/p>\n\n\n\n

Name<\/strong><\/td>Description<\/strong><\/td><\/tr><\/thead>
COALESCE<\/a><\/td>Return the first non-null argument in the argument list.<\/td><\/tr>
DECODE<\/a><\/td>Learn how to add the procedural if-then-else logic to SQL queries.<\/td><\/tr>
NULLIF<\/a><\/td>Compare two expressions and return null if they are equal, otherwise, return the first expression.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

This section provides you with the SQL comparison functions including COALESCE, DECODE, and NULLIF.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":63,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1152","page","type-page","status-publish","hentry"],"yoast_head":"\nSQL Comparison Functions<\/title>\n<meta name=\"description\" content=\"This section provides you with the SQL comparison functions including COALESCE, DECODE, and NULLIF.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sqltutorial.org\/sql-comparison-functions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL Comparison Functions\" \/>\n<meta property=\"og:description\" content=\"This section provides you with 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