日本黄色av片 Sql Server闲居运维看我这篇就够了!
发布日期:2024-10-25 09:28 点击次数:77图片
一、基础号令稽查面前数据库的版块SELECT &VERSION;
稽查劳动器部分稀奇信息
取得数据库面前技艺select SERVERPROPERTY(N'edition') as Edition --数据版块,如企业版、斥地版等
,SERVERPROPERTY(N'collation') as Collation --数据库字符集
,SERVERPROPERTY(N'servername') as ServerName --劳动名
,&VERSION as Version --数据库版块号
,&LANGUAGE AS Language --数据库使用的言语,如us_english等
SELECT GETDATE() AS CurrentDateTime;
稽查数据库启动的参数稽查所罕有据库用户登录信息sp_configure
sp_helplogins
稽查数据库启动技艺(最近一次)稽查有若干个端口select convert(varchar(30),login_time,120) from master..sysprocesses where spid=1
SELECT * FROM sys.dm_tcp_listener_states;
稽查面前的蚁合数稽查各个磁盘分区的剩余空间SELECT COUNT(*) AS [Connection Count] FROM sys.dm_exec_connections;
Exec master.dbo.xp_fixeddrives
稽查数据库的磁盘使用情况稽查数据库劳动器各数据库日记文献的大小及欺诈率Exec sp_spaceused
DBCC SQLPERF(LOGSPACE)
稽查面前占用 cpu 资源最高的会话和其中实施的语句稽查缓存中重用次数少,占用内存大的查询语句(面前缓存中未开释的)select spid,cmd,cpu,physical_io,memusage,
(select top 1 [text] from ::fn_get_sql(sql_handle)) sql_text
from master..sysprocesses order by cpu desc,physical_io desc
SELECT TOP 100 usecounts, objtype, p.size_in_bytes,[sql].[text]
FROM sys.dm_exec_cached_plans p OUTER APPLY sys.dm_exec_sql_text (p.plan_handle) sql
ORDER BY usecounts,p.size_in_bytes desc
看BUFFER POOL中,齐缓存了哪些表(面前数据库)的数据稽查用户的权限select OBJECT_NAME(object_id) 表名,COUNT(*) 页数,COUNT(*)*8/1024.0 Mb
from sys.dm_os_buffer_descriptors a,sys.allocation_units b,sys.partitions c
妇科 偷拍where a.allocation_unit_id=b.allocation_unit_id
and b.container_id=c.hobt_id
and database_id=DB_ID()
group by OBJECT_NAME(object_id)
order by 2 desc
EXEC sp_helprotect;
稽查面前数据库内存使用情况查询面前数据库缓存的所罕有据页面,哪些数据表,缓存的数据页面数目select * from sys.dm_os_process_memory
-- 查询面前数据库缓存的所罕有据页面,哪些数据表,缓存的数据页面数目
-- 从这些信息不错看出,系统平凡要探询的齐是哪些表,有多大?
select p.object_id, object_name=object_name(p.object_id), p.index_id, buffer_pages=count(*)
from sys.allocation_units a,
sys.dm_os_buffer_descriptors b,
sys.partitions p
where a.allocation_unit_id=b.allocation_unit_id
and a.container_id=p.hobt_id
and b.database_id=db_id()
group by p.object_id,p.index_id
order by buffer_pages desc
查询缓存中具体的实施野心,及对应的SQL稽查具体某个用户的权限-- 查询缓存中具体的实施野心,及对应的SQL
-- 将尔后果按照数据表或SQL进行统计,不错看成基线,养息索引时议论
-- 查询后果会很大,谨慎将后果集输出到表或文献中
SELECT usecounts ,
refcounts ,
size_in_bytes ,
cacheobjtype ,
objtype ,
TEXT
FROM sys.dm_exec_cached_plans cp
CROSS APPLY sys.dm_exec_sql_text(plan_handle)
ORDER BY objtype DESC ;
GO
SELECT p.class_desc, OBJECT_NAME(p.major_id) AS object_name, p.permission_name, p.state_desc, u.name AS user_nameFROM sys.database_permissions pJOIN sys.database_principals u ON p.grantee_principal_id = u.principal_idWHERE u.name = 'test’
稽查注册时的实例名SELECT * FROM sys.servers;
查询用户脚色看劳动器脚色select SrvRole = g.name, MemberName = u.name, MemberSID = u.sid
from sys.server_principals u, sys.server_principals g, sys.server_role_members m
where g.principal_id = m.role_principal_id
and u.principal_id = m.member_principal_id
order by 1, 2
go
select 用户名 = u.name,处置员权限 = g.name,是否在用 = u.is_disabled,MemberSID = u.sid
from sys.server_principals u, sys.server_principals g, sys.server_role_members m
where g.principal_id = m.role_principal_id
and u.principal_id = m.member_principal_id
and g.name = 'sysadmin'
order by 1, 2
go
查询面前用户所灵验户表稽查总共的数据库select name from sysobjects where xtype='u' order by name
Select Name FROM Master..SysDatabases orDER BY Name
稽查劳动器脚色磋磨信息稽查数据库脚色磋磨信息SP_HELPSRVROLE
SP_HELPSRVROLEMEMBER 劳动器脚色
SP_HELPSRVROLE 劳动器脚色
SP_HELPROLE
SP_HELPROLEMEMBER 数据库脚色
SP_HELPROLE 数据库脚色
稽查用户磋磨信息稽查前次启动以来尝试的蚁合数SP_HELPUSER
SP_HELPUSER 数据库用户名
select &connections //复返 SQL Server 自前次启动以来尝试的蚁合数,无论蚁合是奏效依然失败
面前实例允许同期进行的最大用户蚁合数查询面前最大的蚁合数select &max_connections
//复返 SQL Server 实例允许同期进行的最大用户蚁合数。复返的数值不一定是面前建树的数值
SELECT value_in_use
FROM sys.configurations c
WHERE c.name = 'user connections'; #0示意无截止
建立修改蚁合数查询面前会话超频频间exec sp_configure 'show advanced options', 1
RECONFIGURE WITH OVERRIDE
exec sp_configure 'user connections', 300
RECONFIGURE WITH OVERRIDE
select &lock_timeout //复返面前会话确面前锁定超时建立(毫秒)。
查询每个用户的蚁合数稽查面前行径的实例select loginame,count(1) as Nums
from sys.sysprocesses
group by loginame
order by 2 desc
select spid,ecid,status,loginame,hostname,cmd,request_id
from sys.sysprocesses where loginame='' and hostname=''
SELECT CURRENT_USER AS [Current User], SESSION_USER AS [Session User];
稽查面前行径程度稽查所罕有据库的大小SELECT * FROM sys.dm_exec_requests;
SELECT
DB_NAME(database_id) AS DatabaseName,
SUM(size/128.0) AS SizeInMB,
SUM(size/128.0)/1024 AS SizeInGB
FROM
sys.master_files
GROUP BY
database_id
ORDER BY
SizeInMB DESC;
稽查某个数据库的大小稽查面前数据库的日记大小SELECT sys.databases.name AS [Database Name],
CAST(SUM(size * 8 / 1024.0) AS DECIMAL(10,2)) AS [Size (MB)]
FROM sys.master_files
INNER JOIN sys.databases ON sys.master_files.database_id = sys.databases.database_id
WHERE sys.databases.name = 'master'
GROUP BY sys.databases.name;
#也不错用EXEC sp_spaceused @updateusage = N'TRUE';
SELECT sys.databases.name AS [Database Name],
CAST(size * 8 / 1024.0 AS DECIMAL(10,2)) AS [Log File Size (MB)]
FROM sys.master_files
INNER JOIN sys.databases ON sys.master_files.database_id = sys.databases.database_id
WHERE sys.databases.name = 'master'
AND sys.master_files.type = 1;
查询面前数据库的表和视图查询表结构信息SELECT TABLE_NAME AS [Table/View Name], TABLE_TYPE AS [Type]
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE IN ('BASE TABLE', 'VIEW');
sp_help 'test';
二、运维小手段一次性撤消数据库总共表的数据(高危操作,严慎)数据备份与复原备份CREATE PROCEDURE sp_DeleteAllData
AS
EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL'
EXEC sp_MSForEachTable 'ALTER TABLE ? DISABLE TRIGGER ALL'
EXEC sp_MSForEachTable 'DELETE FROM ?'
EXEC sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL'
EXEC sp_MSForEachTable 'ALTER TABLE ? ENABLE TRIGGER ALL'
EXEC sp_MSFOREACHTABLE 'SELECT * FROM ?'
GO
BACKUP DATABASE test TO DISK = 'C:\backup\MyDatabase.bak';
复原无缺数据库备份RESTORE DATABASE MyDatabase FROM DISK = 'C:\backup\MyDatabase.bak';
BACKUP DATABASE test
TO DISK = 'C:\Backup\MyDatabase.bak'
WITH FORMAT, MEDIANAME = 'MyDatabase_Full', NAME = 'Full Backup';
各异备份事务日记备份BACKUP DATABASE test
TO DISK = 'C:\Backup\MyDatabase_diff.bak'
WITH DIFFERENTIAL, FORMAT, MEDIANAME = 'MyDatabase_Diff', NAME = 'Differential Backup';
BACKUP LOG test
TO DISK = 'C:\Backup\MyDatabase_log.trn'
WITH NOFORMAT, NOINIT, NAME = N'MyDatabase_LogBackup', SKIP, NOREWIND, NOUNLOAD, STATS = 10;
还原数据库创建账户及数据库用户RESTORE DATABASE test
FROM DISK = 'C:\Backup\MyDatabase.bak'
WITH FILE = 1, NOUNLOAD, REPLACE, STATS = 5;
#创建账户
CREATE LOGIN test WITH PASSWORD = '123123';
#创建数据库用户并映射到登录名
CREATE USER test FOR LOGIN test;
ALTER ROLE db_datareader ADD MEMBER test; -- 赐与读权限
ALTER ROLE db_datawriter ADD MEMBER test; -- 赐与写权限
SQL优化磋磨、实施技艺SELECT creation_time N'语句编译技艺'
,last_execution_time N'前次实施技艺'
,total_physical_reads N'物理读取总次数'
,total_logical_reads/execution_count N'每次逻辑读次数'
,total_logical_reads N'逻辑读取总次数'
,total_logical_writes N'逻辑写入总次数'
,execution_count N'实施次数'
,total_worker_time/1000 N'所用的CPU总技艺ms'
,total_elapsed_time/1000 N'总铺张技艺ms'
,(total_elapsed_time / execution_count)/1000 N'平均技艺ms'
,SUBSTRING(st.text, (qs.statement_start_offset/2) + 1,
((CASE statement_end_offset
WHEN -1 THEN DATALENGTH(st.text)
ELSE qs.statement_end_offset END
- qs.statement_start_offset)/2) + 1) N'实施语句'
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) st
WHERE SUBSTRING(st.text, (qs.statement_start_offset/2) + 1,
((CASE statement_end_offset
WHEN -1 THEN DATALENGTH(st.text)
ELSE qs.statement_end_offset END
- qs.statement_start_offset)/2) + 1) NOT LIKE '
栏目分类