新手请教sql语句

[xxx1213092752]

sql1="select top "+pageSize+" * from (select * from users where userName='"+findUserName+"') where userId not in (select top "+ pageSize*(pageNow-1)+" userId from (select * from users where userName='"+findUserName+"'))


pageSize,findUserName,findUserName,pageNow都是变量

[AcHerat]

sql1="select top "+pageSize+" * from (select * from users where userName='"+findUserName+"')t where userId not in (select top "+ pageSize*(pageNow-1)+" userId from (select * from users where userName='"+findUserName+"')g)

[叶子]

嵌套缺少别名，
如果是在SQL里面，变量前面要加上@

[Shawn]

string sql = 
"select TOP("+pageSize.ToString()+") * from 
(
	select * from users 
	where userName = '"+findUserName+"'
		and userId not in 
		(
			select TOP("+ (pageSize*(pageNow-1)).ToString()+") userId 
			from (select * from users where userName='"+findUserName+"') T
		)
)"

[Shawn]

--你分页的SQL不对。
SELECT TOP(@pagesize) * FROM users
WHERE userName = @findUserName
	AND rowid NOT IN --这儿不应该用userId
	(
		SELECT TOP(@pagesize*(@pageNow-1)) rowid 
		FROM users 
		WHERE userName = @findUserName
	)
--呵呵，这个分页的效率不敢恭维

[xxx1213092752]

谢谢各位大侠的帮忙！

[ABCDEF]

ALTER PROCEDURE [dbo].[PROCE_SQL2005PAGECHANGE]
(
@TableName varchar(50), --表名
@ReFieldsStr varchar(200) = '*', --字段名(全部字段为*)
@OrderString varchar(200), --排序字段(必须!支持多字段不用加order by)
@WhereString varchar(500) =N'', --条件语句(不用加where)
@PageSize int, --每页多少条记录
@PageIndex int = 1 , --指定当前为第几页
@TotalRecord int output --返回总记录数
)
AS

BEGIN

--处理开始点和结束点
Declare @StartRecord int;
Declare @EndRecord int;
Declare @TotalCountSql nvarchar(500);
Declare @SqlString nvarchar(2000);
set @StartRecord = (@PageIndex-1)*@PageSize + 1
set @EndRecord = @StartRecord + @PageSize - 1
SET @TotalCountSql= N'select @TotalRecord = count(*) from ' + @TableName;--总记录数语句
SET @SqlString = N'(select row_number() over (order by '+ @OrderString +') as rowId,'+@ReFieldsStr+' from '+ @TableName;--查询语句
--
IF (@WhereString! = '' or @WhereString!=null)
BEGIN
SET @TotalCountSql=@TotalCountSql + ' where '+ @WhereString;
SET @SqlString =@SqlString+ ' where '+ @WhereString;
END
--第一次执行得到
--IF(@TotalRecord is null)
-- BEGIN
EXEC sp_executesql @totalCountSql,N'@TotalRecord int out',@TotalRecord output;--返回总记录数
-- END
----执行主语句
set @SqlString ='select * from ' + @SqlString + ') as t where rowId between ' + ltrim(str(@StartRecord)) + ' and ' + ltrim(str(@EndRecord));
Exec(@SqlString)
END

[andy_liucj]

稍微学习下T-SQL的知识再学着写T-SQL
否则会不知如何下手的