基于Mysql的通用分页存储过程
CREATE PROCEDURE `P_viewPage`( $TableName VARCHAR(200),$FieldList VARCHAR(2000),
$PrimaryKey VARCHAR(100),
$Where VARCHAR(1000),
$Order VARCHAR(1000),
$SortType INT,
$RecorderCount INT,
$PageSize INT,
$PageIndex INT,
OUT $TotalCount INTEGER,
OUT $TotalPageCount INTEGER
)
BEGIN
IF !(($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 ;
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