T-SQL常用字符串函数 无 ?SELECT SUBSTRING(‘123456’, 2, 3); –‘234’SELECT LEFT(‘123456’, 3); –‘123’SELECT RIGHT(‘123456’, 3); –‘456’SELECT LEN(‘你好’);–2SELECT DATALENGTH(‘你好’);–4SELECT CHARINDEX(’23’, ‘1234553’);–2SELECT PATINDEX(‘%[0
T-SQL常用字符串函数 本文来源gao.dai.ma.com搞@代*码(网$ <style> .CodeEntity .code_pieces ul.piece_anchor{width:25px;position:absolute;top:25px;left:-30px;z-index:1000;} .CodeEntity .code_pieces ul.piece_anchor li{width:25px;background: #efe;margin-bottom:2px;} .CodeEntity .code_pieces ul.piece_anchor li{border-left:3px #40AA63 solid;border-right:3px #efe solid;} .CodeEntity .code_pieces ul.piece_anchor li:hover{border-right:3px #40AA63 solid;border-left:3px #efe solid;} .CodeEntity .code_pieces ul.piece_anchor li a{color: #333;padding: 3px 10px;} .CodeEntity .code_pieces .jump_to_code{visibility:hidden;position:relative;} .CodeEntity .code_pieces .code_piece:hover .jump_to_code{visibility:visible;} .CodeEntity .code_pieces .code_piece:hover .jump_to_code a{text-decoration:none;} .CodeEntity .code_pieces h2 i{float:right;font-style:normal;font-weight:normal;} .CodeEntity .code_pieces h2 i a{font-size:9pt;background: #FFFFFF;color:#00A;padding: 2px 5px;text-decoration:none;} </style> <!—ecms
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?SELECT SUBSTRING('123456', 2, 3); --'234'SELECT LEFT('123456', 3); --'123'SELECT RIGHT('123456', 3); --'456'SELECT LEN('你好'); --2SELECT DATALENGTH('你好'); --4 SELECT CHARINDEX('23', '1234553'); --2SELECT PATINDEX('%[0-9]%','abc123gh'); --4SELECT REPLACE('1-1', '-', '.'); --'1.1'SELECT REPLICATE('A', 4); --'AAAA'SELECT STUFF('ABC', 2, 0, 'abc'); --'AabcBC'SELECT UPPER('AbCd'); --'ABCD'SELECT LOWER('AbCd'); --'abcd'SELECT RTRIM(' abcd '); --' abcd' SELECT LTRIM(' abcd '); --'abcd '
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