delimiter $$;
drop procedure if exists P_viewPage;
$$;
delimiter $$;
CREATE PROCEDURE P_viewPage(
$TableName VARCHAR(200), //表名
$FieldList VARCHAR(2000), //字段集 可以是*
$PrimaryKey VARCHAR(100), //主键
$Where VARCHAR(1000), //where条件,例如id > 100
$Order VARCHAR(1000), //排序条件 例如:id
$SortType INT, //排序条件 1表示升序,2表示降序
$RecorderCount INT, //总数据行数，如果传0，表示重新查询数据行数，如果不为0，传入的数据就表示总数据行数
$PageSize INT, //每页大小
$PageIndex INT, //当前页数
OUT $TotalCount INTEGER, //返回总行数
OUT $TotalPageCount INTEGER //返回总页数
)
BEGIN
IF !(($TableName is null OR $TableName='') OR ($FieldList is null OR $FieldList='') OR ($PrimaryKey is null OR $PrimaryKey='') OR $SortType < 1 OR $SortType >3 OR $RecorderCount < 0 OR $PageSize < 0 OR $PageIndex < 0) THEN
IF ($where is null OR $where='') THEN
SET @new_where1 = ' ' ;
SET @new_where2 = ' WHERE ' ;
ELSE
SET @new_where1 =concat(' WHERE ',$where);
SET @new_where2 =concat(' WHERE ',$where,' AND ');
END IF;
IF $order='' OR $SortType = 1 OR $SortType = 2 THEN
IF $SortType = 1 THEN
SET @new_order =concat(' ORDER BY ',$PrimaryKey,' ASC' );
END IF;
IF $SortType = 2 THEN
SET @new_order =concat(' ORDER BY ',$PrimaryKey,' DESC');
END IF;
ELSE
SET @new_order =concat(' ORDER BY ',$Order);
END IF;
SET @SqlCount = concat('SELECT COUNT(*) into @TotalCount FROM ',$TableName,@new_where1);
SET @SqlCount1 = concat('SELECT CEILING((COUNT(*)+0.0)/',$PageSize,') into @TotalPageCount FROM ',$TableName,@new_where1);
IF $RecorderCount = 0 THEN
PREPARE stmt1 FROM @SqlCount;
EXECUTE stmt1;
set $TotalCount=@TotalCount;
PREPARE stmt1 FROM @SqlCount1;
EXECUTE stmt1;
set $TotalPageCount=@TotalPageCount;
ELSE
set $TotalCount = $RecorderCount;
END IF;
IF $PageIndex > CEILING(($TotalCount+0.0)/$PageSize) THEN
SET $PageIndex = CEILING(($TotalCount+0.0)/$PageSize);
END IF;
IF $PageIndex = 0 or $PageIndex = 1 THEN
SET @Sql=concat('SELECT ',$FieldList,' FROM ',$TableName,@new_where1,@new_order,' limit ',$PageSize);
ELSE
IF $SortType = 1 THEN
SET @Sql=concat('SELECT ',$FieldList,' FROM ',$TableName,@new_where2,$PrimaryKey,' > (SELECT max(',$PrimaryKey,') FROM (SELECT ',$PrimaryKey,' FROM ',$TableName,@new_where1,@new_order,' limit ',$PageSize*($PageIndex-1),' ) AS TMP) ',@new_order,' limit ',$PageSize);
END IF;
IF $SortType = 2 THEN
SET @Sql=concat('SELECT ',$FieldList,' FROM ',$TableName,@new_where2,$PrimaryKey,' < (SELECT MIN(',$PrimaryKey,') FROM (SELECT ',$PrimaryKey,' FROM ',$TableName,@new_where1,@new_order,' limit ',$PageSize*($PageIndex-1),' ) AS TMP) ',@new_order,' limit ',$PageSize);
END IF;
IF $SortType = 3 THEN
IF INSTR($Order,',') > 0 THEN
SET @Sql=concat('SELECT ',$FieldList,' FROM ',$TableName,@new_where2,$PrimaryKey,' NOT IN (SELECT ',$PrimaryKey,' FROM (SELECT ',$PrimaryKey,' FROM ',$TableName,@new_where1,@new_order,' limit ',$PageSize*($PageIndex-1),' ) a)',@new_order,' limit ',$PageSize);
ELSE
SET @new_order =concat(' ORDER BY ',$PrimaryKey,' ASC' );
SET @Sql=concat('SELECT ',$FieldList,' FROM ',$TableName,@new_where2,$PrimaryKey,' > (SELECT max(',$PrimaryKey,') FROM (SELECT ',$PrimaryKey,' FROM ',$TableName,@new_where1,@new_order,' limit ',$PageSize*($PageIndex-1),' ) AS TMP) ',@new_order,' limit ',$PageSize);
END IF;
END IF;
END IF;
Prepare stmt2 from @Sql;
execute stmt2;
END IF;
END;
$$;
delimiter ;
call P_viewPage ('users', '*', 'u_id', 'u_id > 100', 'u_id', 1, 0, 20, 1, @totalcount, @totalpagecount);
select @totalcount, @totalpagecount;
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来源于：http://wenlujun.blog.51cto.com/336737/71819/
