|
T-SQL Extractor(1)
/******************************************************************************
* Author: iret
* Desc: T-SQL Extractor
* Extract the comments and blanks and tabs from the SQL statement
* 为了比较两个存储过程，或者SQL语句是否一致，抽空写了一个可以删除T-SQL 语句中的注释和空格的脚本，挺精致的样子。
* Created Date: 2004/10/21
******************************************************************************/ DECLARE @script VARCHAR(8000), @extractedScript VARCHAR(4000)
SET @script = ''
/*从系统表获取存储过程的脚本*/
SELECT @script = @script + [text]
FROM syscomments, sysobjects
WHERE
syscomments.[id] = sysobjects.[id] AND sysobjects.[name] LIKE '%campa_AppSegment' /*标志符*/
DECLARE @InLineCommented BIT, @InSectionCommented BIT, @InString BIT, @position INT /*当前字符*/
DECLARE @curChar INT
/*前一个字符*/
DECLARE @preChar INT SET @InLineCommented = 0
SET @InSectionCommented = 0
SET @InString = 0 SET @extractedScript = ''
SET @position = 1
SET @preChar = null WHILE @position <= DATALENGTH(@script)
BEGIN
--获取当前字符
SET @curChar = ASCII(SUBSTRING(@script, @position, 1))
IF @preChar = ASCII('/') AND @curChar = ASCII('*') AND @InLineCommented = 0 AND @InString = 0
BEGIN
-- SET the sign in section comment
SET @InSectionCommented = 1 --pop the / char
SET @extractedScript = substring(@extractedScript,1,len(@extractedScript)-1) SET @preChar = @curChar
SET @position = @position + 1
CONTINUE
| 
