一個統(tǒng)計表每天的新增行數(shù)及新增存儲空間的功能
發(fā)布日期:2021-12-27 17:36 | 文章來源:腳本之家
使用文中提供的代碼做一個統(tǒng)計表每天的新增行數(shù)及新增存儲空間的功能
實現(xiàn)步驟如下:
1. 創(chuàng)建表
創(chuàng)建表,存儲每天的表空間占用情況
CREATE TABLE [dbo].[t_rpt_table_spaceinfo]( [table_name] [sysname] NOT NULL, [record_date] [date] NOT NULL, [record_time] [time](7) NOT NULL, [rows_count] [bigint] NULL, [reserved] [bigint] NULL, [data_size] [bigint] NULL, [index_size] [bigint] NULL, [unused] [bigint] NULL, CONSTRAINT [PK_t_rpt_table_spaceinfo] PRIMARY KEY CLUSTERED ( [table_name] ASC, [record_date] ASC, [record_time] ASC ) )
2. 新建作業(yè)
新建作業(yè),作業(yè)計劃每天凌晨運行一次,每天記錄表占用的空間情況,存儲到上一步建立的表中
作業(yè)中執(zhí)行的T-SQL代碼為:
SET NOCOUNT ON /*創(chuàng)建臨時表,存放用戶表的空間及數(shù)據(jù)行數(shù)信息*/ CREATE TABLE #tablespaceinfo ( nameinfo VARCHAR(500) , rowsinfo BIGINT , reserved VARCHAR(20) , datainfo VARCHAR(20) , index_size VARCHAR(20) , unused VARCHAR(20) ) DECLARE @tablename VARCHAR(255); /*使用游標(biāo),循環(huán)得到表空間使用情況*/ DECLARE Info_cursor CURSOR FOR SELECT '[' + [name] + ']' FROM sys.tables WHERE type = 'U'; OPEN Info_cursor FETCH NEXT FROM Info_cursor INTO @tablename WHILE @@FETCH_STATUS = 0 BEGIN INSERT INTO #tablespaceinfo EXEC sp_spaceused @tablename FETCH NEXT FROM Info_cursor INTO @tablename END INSERT INTO t_rpt_table_spaceinfo (record_date, record_time, [table_name], [rows_count] , reserved, [data_size], index_size, unused) SELECT convert(date,getdate()), convert(varchar(8),getdate(),114), nameinfo, rowsinfo ,CAST(REPLACE(reserved, 'KB', '') AS BIGINT) ,CAST(REPLACE(datainfo, 'KB', '') AS BIGINT) ,CAST(REPLACE(index_size, 'KB', '') AS BIGINT) ,CAST(REPLACE(unused, 'KB', '') AS BIGINT) FROM #tablespaceinfo CLOSE Info_cursor DEALLOCATE Info_cursor DROP TABLE [#tablespaceinfo]
3. 查詢結(jié)果
連續(xù)的數(shù)據(jù)記錄之間做比較,即可得到數(shù)據(jù)的增量變化情況
示例代碼如下:
;with table_spaceinfo as ( select record_date, record_time, table_name, rows_count, reserved, data_size, index_size, unused ,ROW_NUMBER() over(PARTITION by table_name order by record_date,record_time asc) as list_no from t_rpt_table_spaceinfo ) select _a.table_name as 表名,convert(varchar(20),_a.record_date)+' '+convert(varchar(8),_a.record_time)+'~~' +convert(varchar(20),_b.record_date)+' '+convert(varchar(8),_b.record_time) as [時間段范圍] ,_b.rows_count-_a.rows_count as [新增的行數(shù)] ,_b.data_size - _a.data_size as [新增數(shù)據(jù)空間(KB)] from table_spaceinfo _a join table_spaceinfo _b on _a.table_name=_b.table_name and _a.list_no=_b.list_no-1 order by [時間段范圍]
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