按时间动态生成分区脚本
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--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 [‘[email protected] +‘]
ADD FILEGROUP [FG_‘[email protected]+‘_‘[email protected]+‘_‘[email protected]+‘]‘
PRINT @sql + CHAR(13)
SET @[email protected]+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 [‘[email protected] +‘]
ADD FILE
(NAME = N‘‘FG_‘[email protected]+‘_‘[email protected]+‘_‘[email protected]+‘_data‘‘,FILENAME = N‘‘‘[email protected]+‘FG_‘[email protected]+‘_‘[email protected]+‘_‘[email protected]+‘_data.ndf‘‘,SIZE = ‘[email protected]+‘, FILEGROWTH = ‘[email protected]+‘ )
TO FILEGROUP [FG_‘[email protected]+‘_‘[email protected]+‘_‘[email protected]+‘];‘
PRINT @sql + CHAR(13)
SET @[email protected]+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_‘[email protected]+‘_‘[email protected]+‘(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 @[email protected]+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_‘[email protected]+‘_‘[email protected]+‘ AS
PARTITION Fun_‘[email protected]+‘_‘[email protected]+‘
TO(‘
PRINT @sql
SET @i = 1
SET @FileGroupStr = ‘‘
WHILE @i <= @PartNumber
BEGIN
SET @PartNumberStr = RIGHT(‘000‘ + CONVERT(NVARCHAR,@i),4)
SET @FileGroupStr = @FileGroupStr + ‘[FG_‘[email protected]+‘_‘[email protected]+‘_‘[email protected]+‘],‘
IF (@i = @PartNumber)
BEGIN
SET @FileGroupStr = substring(@FileGroupStr,1,len(@FileGroupStr)-1)
END
PRINT @FileGroupStr
SET @FileGroupStr = ‘‘
SET @[email protected]+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_‘[email protected]+‘_‘[email protected]+‘(‘[email protected]+‘) AS Partition_num,
MIN(‘[email protected]+‘) AS Min_value,MAX(‘[email protected]+‘) AS Max_value,COUNT(1) AS Record_num
FROM dbo.‘[email protected]+‘
GROUP BY $PARTITION.Fun_‘[email protected]+‘_‘[email protected]+‘(‘[email protected]+‘)
ORDER BY $PARTITION.Fun_‘[email protected]+‘_‘[email protected]+‘(‘[email protected]+‘);‘
PRINT @sql + CHAR(13)
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