在SQL 中,`TRIM()` 函数用于从字符串的开头和结尾删除空格或指定的字符1. 创建一个自定义的 TRIM 函数:```sqlCREATE FUNCTION custom_trim(...
Rem:由于LEN不统计尾随空格,所以做特别处理 ---*/ALTERFUNCTIONdbo.Trim(@sVARCHAR(7999))RETURNSVARCHAR(7999)ASBEGINWHILEASCII(RIGHT(@s,1))IN(9,10,13,32)BEGINSET@s=LEFT(@s,CASEASCII(RIGHT(@s,1))WHEN32THENLEN(@s)ELSELEN(@s)-1END)ENDWHILEASCII(@s)IN(9,10,13,32)BEGINSET@s=RIGHT(@...
The SQL `TRIM()` function is essential for data manipulation, allowing you to remove unwanted characters from strings. Whether it's cleaning up user input or standardizing data formats, `TRIM()` helps ensure your data is neat and consistent. This guide will walk you through the `TRIM()` f...
The TRIM() function removes the space character OR other specified characters from the start or end of a string. By default, the TRIM() function removes leading and trailing spaces from a string. Note:Also look at theLTRIM()andRTRIM()functions. ...
CREATEFUNCTIONdbo.trim ( @SourceVARCHAR(MAX), @CharCHAR(1) ) RETURNSVARCHAR(MAX) AS BEGIN DECLARE@iint; DECLARE@returnStringVARCHAR(MAX) SET@returnString=@Source --清除前后空格 SET@returnString=LTRIM(RTRIM(@returnString)) --删除左侧字符 ...
CREATEFUNCTIONdbo.trim ( @SourceVARCHAR(MAX), @CharCHAR(1) ) RETURNSVARCHAR(MAX) AS BEGIN DECLARE@iint; DECLARE@returnStringVARCHAR(MAX) SET@returnString=@Source --清除前后空格 SET@returnString=LTRIM(RTRIM(@returnString)) --删除左侧字符 ...
简介:原文:【SQL】靠谱的TRIM函数,附赠过程一枚SQL中有LTRIM和RTRIM这两个函数分别用于去除字符串的首、尾空格,缺乏常见的能同时去除首尾的TRIM函数,另外,这俩函数都只对【空格】有效,所以如果首尾是制表符、换行符等等【空白】,它们是不处理的~起码到sql 2k8 r2仍然如此。
lpad和rpad: 示例:select lpad('function',15,'=') from dual; 输出结果:===function。而rpad则相反,字符串填充在右边。 trim: 此函数从字符串的开头或结尾(或开头和结尾)剪裁特定的字符,默认剪裁空格。如果加上leading选项时与ltrim函数相似。指定trailing时和 rtrim函数相似。 示例: ...
function trim(str){ //删除左右两端的空格 returnstr.replace(/(^\s*)|(\s*$)/g, ""); } 方案四:SQLserver中 不知道是什么符号,逐个复制、粘贴、替换。(适用于穷举的种类不多的情况) 一、问题描述: 数据库中字段 nvarchar类型 存放数据如下: ...
reverse function Examples using QueryRequest API Thetrimfunction enables you to trim leading or trailing characters (or both) from a string. Theltrimfunction enables you to trim leading characters from a string. Thertrimfunction enables you to trim trailing characters from a string. ...