Question

我正在将文件夹中的文件名转换为临时表。然后我使用游标对每个文件名执行某些操作。当我尝试用REPLACE替换文件名中的.bak字符串时，它无法给出错误 - 必须声明标量变量“@FILENEME”。为什么？如何解决？

代码 -

CREATE TABLE ##FILES(
Name varchar(200),    
depth numeric,    
isFile numeric
)

--Assumption - the sp xp_dirtree has these columns 
- subdirectory, depth, file 
INSERT INTO ##FILES 
EXEC xp_dirtree 'C:\Program Files\Microsoft SQL Server\
MSSQL10_50.SS2008\MSSQL\Backup\', 10, 1


DECLARE @FILENAME AS VARCHAR(200)
DECLARE @db AS VARCHAR(200)
DECLARE C CURSOR FOR
    SELECT Name
    FROM ##FILES
    WHERE isFile = 1
OPEN C
FETCH NEXT FROM C INTO @FILENAME
WHILE @@FETCH_STATUS = 0
BEGIN
    SET @db = REPLACE(@FILENEME, '.bak', '')
    print @db

    FETCH NEXT FROM C INTO @FILENAME
END
CLOSE C
DEALLOCATE C

Answer 1

REPLACE(@FILENEME, '.bak', '')中的简单拼写错误

使用此REPLACE(@FILENAME, '.bak', '')

CREATE TABLE ##FILES(
Name varchar(200),    
depth numeric,    
isFile numeric
)

--Assumption - the sp xp_dirtree has these columns 
- subdirectory, depth, file 
INSERT INTO ##FILES 
EXEC xp_dirtree 'C:\Program Files\Microsoft SQL Server\
MSSQL10_50.SS2008\MSSQL\Backup\', 10, 1


DECLARE @FILENAME AS VARCHAR(200)
DECLARE @db AS VARCHAR(200)
DECLARE C CURSOR FOR
    SELECT Name
    FROM ##FILES
    WHERE isFile = 1
OPEN C
FETCH NEXT FROM C INTO @FILENAME
WHILE @@FETCH_STATUS = 0
BEGIN
    SET @db = REPLACE(@FILENAME, '.bak', '')
    print @db

    FETCH NEXT FROM C INTO @FILENAME
END
CLOSE C
DEALLOCATE C

REPLACE不能接受varchar变量

1 个答案: