按时间（日期）动态生成SQL SERVER数据库分区脚本

--按时间（日期）动态生成SQL SERVER数据库分区脚本，分好区后，手动和表建立关联即可

--生成分区脚本

DECLARE @DataBaseName NVARCHAR(50)--数据库名称

DECLARE @TableName NVARCHAR(50)--表名称

DECLARE @ColumnName NVARCHAR(50)--字段名称

DECLARE @PartNumber INT--需要分多少个区

DECLARE @Location NVARCHAR(50)--保存分区文件的路径

DECLARE @Size NVARCHAR(50)--分区初始化大小

DECLARE @FileGrowth NVARCHAR(50)--分区文件增量

--DECLARE @FunValue INT--分区分段值

DECLARE @i INT

DECLARE @y INT      --起始年份

DECLARE @m INT      --起始月份

DECLARE @d INT      --起始天

DECLARE @dayGap INT --分区分段值 天数

DECLARE @PartNumberStr NVARCHAR(50)

DECLARE @sql NVARCHAR(max)

DECLARE @ValueStart NVARCHAR(50)

--设置下面变量

SET @DataBaseName = 'HEJIEXUN'

SET @TableName = 'DYNAMINE_A_REAL_DATA'

SET @ColumnName = 'TIME'

SET @PartNumber = 500

SET @Location = 'C:\HejiexunServer\Database\'

SET @Size = '80MB'

SET @FileGrowth = '30%'

SET @y = 2015

SET @m = 1

SET @d = 1

SET @dayGap = 3

--1.创建文件组

SET @i = 1

PRINT '--1.创建文件组'

WHILE @i <= @PartNumber

BEGIN

    SET @PartNumberStr =  RIGHT('000' + CONVERT(NVARCHAR,@i),4)

    SET @sql = 'ALTER DATABASE ['+@DataBaseName +']

ADD FILEGROUP [FG_'+@TableName+'_'+@ColumnName+'_'+@PartNumberStr+']'

    PRINT @sql + CHAR(13)

    SET @i=@i+1

END

--2.创建文件

SET @i = 1

PRINT CHAR(13)+'--2.创建文件'

WHILE @i <= @PartNumber

BEGIN

    SET @PartNumberStr =  RIGHT('000' + CONVERT(NVARCHAR,@i),4)

    SET @sql = 'ALTER DATABASE ['+@DataBaseName +']

ADD FILE

(NAME = N''FG_'+@TableName+'_'+@ColumnName+'_'+@PartNumberStr+'_data'',FILENAME = N'''+@Location+'FG_'+@TableName+'_'+@ColumnName+'_'+@PartNumberStr+'_data.ndf'',SIZE = '+@Size+', FILEGROWTH = '+@FileGrowth+' )

TO FILEGROUP [FG_'+@TableName+'_'+@ColumnName+'_'+@PartNumberStr+'];'

    PRINT @sql + CHAR(13)

    SET @i=@i+1

END

--3.创建分区函数

PRINT CHAR(13)+'--3.创建分区函数'

DECLARE @FunValueStr NVARCHAR(MAX) 

--SET @FunValueStr = substring(@FunValueStr,1,len(@FunValueStr)-1)

SET @sql = 'CREATE PARTITION FUNCTION

Fun_'+@TableName+'_'+@ColumnName+'(DATETIME) AS

RANGE RIGHT

FOR VALUES('

PRINT @sql

SET @i = 1

SET @FunValueStr = ''

WHILE @i < @PartNumber

BEGIN

    SET @FunValueStr = @FunValueStr + '''' + RIGHT(CONVERT(NVARCHAR, @y),4) + '-' + RIGHT('0' + CONVERT(NVARCHAR, @m),2) + '-' + RIGHT('0' + CONVERT(NVARCHAR, @d),2) + ' 00:00:00.000'','

    SET @d = @d + @dayGap

IF (@d > 30 OR (@m = 2 AND @d > 28))  --二月需要特殊处理一下

        BEGIN

            SET @d = 1

            SET @m = @m + 1

            if (@m > 12)

                BEGIN

                    SET @m = 1

                    SET @y = @y + 1

                END

        END

    IF (@i = @PartNumber - 1)

BEGIN

SET @FunValueStr = substring(@FunValueStr,1,len(@FunValueStr)-1)

END

    PRINT @FunValueStr

    SET @FunValueStr = ''

    SET @i=@i+1

END

PRINT ')' + CHAR(13)

--4.创建分区方案

PRINT CHAR(13)+'--4.创建分区方案'

DECLARE @FileGroupStr NVARCHAR(MAX) 

--SET @FileGroupStr = substring(@FileGroupStr,1,len(@FileGroupStr)-1)

SET @sql = 'CREATE PARTITION SCHEME

Sch_'+@TableName+'_'+@ColumnName+' AS

PARTITION Fun_'+@TableName+'_'+@ColumnName+'

TO('

PRINT @sql

SET @i = 1

SET @FileGroupStr = ''

WHILE @i <= @PartNumber

BEGIN

    SET @PartNumberStr =  RIGHT('000' + CONVERT(NVARCHAR,@i),4)

    SET @FileGroupStr = @FileGroupStr + '[FG_'+@TableName+'_'+@ColumnName+'_'+@PartNumberStr+'],'

    IF (@i = @PartNumber)

BEGIN

SET @FileGroupStr = substring(@FileGroupStr,1,len(@FileGroupStr)-1)

END

    PRINT @FileGroupStr

    SET @FileGroupStr = ''

    SET @i=@i+1

END

PRINT ')'

--5.分区函数的记录数

PRINT CHAR(13)+'--5.分区函数的记录数'

SET @sql = 'SELECT $PARTITION.Fun_'+@TableName+'_'+@ColumnName+'('+@ColumnName+') AS Partition_num,

  MIN('+@ColumnName+') AS Min_value,MAX('+@ColumnName+') AS Max_value,COUNT(1) AS Record_num

FROM dbo.'+@TableName+'

GROUP BY $PARTITION.Fun_'+@TableName+'_'+@ColumnName+'('+@ColumnName+')

ORDER BY $PARTITION.Fun_'+@TableName+'_'+@ColumnName+'('+@ColumnName+');'

PRINT @sql + CHAR(13)