temporal tables sql server

In the process of maintaining SQL Server databases, do you often encounter thousands of log20050901 such as the log table, each table is not a lot of data, one open look is very inconvenient, or sometimes we need to put the data in these tables, One open operation is also very troublesome. Here is a way to automate the merging of

right table does not have a matching row in the left table, a null value will be returned for left table.3) Full join or full OUTER joina full outer join returns all rows from the left and right tables. When a row does not have a matching row in another table, the selection list column for the other table contains a null value. If there are matching rows between the tables, the entire result set row contai

permission on the new schema.If you want this user to see objects inside the new schema, grant the view DEFINITION permission for the new schema for this user. 5, the above is said to use the statement to establish the method. Note There are some differences when using SQL Server client tools to build tables and stored procedures. Building a table from the graph

Label: --/1th Step ********** Remove foreign KEY constraints for all tables *************************/ DECLAREC1cursor for Select 'ALTER TABLE ['+ object_name(parent_obj)+ '] Drop constraint ['+Name+']; ' fromsysobjectswhereXtype= 'F' OpenC1Declare @c1 varchar(8000) Fetch Next fromC1 into @c1 while(@ @fetch_status=0) begin exec(@c1) Fetch Next fromC1 into @c1 End CloseC1deallocateC1--/2nd Step ********** Delete all

Tags: name common allow select Details SEL SDA System--1. Querying the user tables in the current databaseSelect *from sysobjects where xtype= ' U ';2. Get the maximum number of simultaneous user connections allowed by SQL ServerSELECT @ @MAX_CONNECTIONS;3. Get connection information for the currently specified databaseSELECT * from master.dbo.sysprocesses WHERE dbid in(SELECT dbid from master.dbo.sysdataba

((Member INNER join Membersort on Member.membersort=membersort.membersort) INNER join Me Mberlevel on Member.memberlevel=memberlevel.memberlevel) INNER JOIN memberidentity on member.memberidentity= The memberidentity.memberidentity syntax format can be summarized as: from (table 1 INNER JOIN table 2 on table 1. Field number = Table 2. Field number) INNER JOIN table 3 on table 1. Field number = Table 3. Field number) INNER J OIN table 4 on Member. Field number = Table 4. Field number connection

is used in SQL Server, and is the identifier of the database in SQL Server.6.filename Specifies the operating system folder name and path for the file where the database resides, and the operating system file name corresponds to the logical name one by one of name.7. size Specifies the initial capacity of the database

Display information for all tables or views in a database in a SQL ServerThe difference between SQL Server 2000 and 2005 is in the Red Word sectionThe following statement takes all table information and replaces the green bold word "U" as "V" for all View information. SQL

1. Using CursorsDECLARE @sql varchar ( $), @name varchar ( +) DECLARE my_cursor scroll cursor for SelectName fromsysobjectswhereType ='u'and name like'jobs_%'Open My_cursorfetch Next frommy_cursor into @name while(@ @fetch_status =0) BEGIN Print'processing'+@nameSet@sql = N'ALTER TABLE Testbfcmisuser.'+ @name + N'Add note varchar ($)'exec (@sql) print'finished

This article is original article, reprint please indicate the source! My blog address: http://www.cnblogs.com/txwdAs a result of the work, for more than a year now for this has not written SQL Server storage process, has been a little rusty. Recently work has a table of data needs to be updated regularly, turn over the previously written storage process, in this record.The requirement is this:There are two

SQL Server tables: SELECT COUNT (1) from sysobjects where xtype= ' U ' views: select COUNT (1) from sysobjects where xtype= ' V ' number stored procedures Selec T count (1) from sysobjects where xtype= ' P 'SELECT * from sysobjects WHERE (xtype = ' U ')C = CHECK ConstraintD = defaults or DEFAULT constraintsf = FOREIGN key constraint l = log FN = Scalar function

, Ignore_dup_key = off, Allow_row_locks = on, allow_page_locks = ON) O N [PRIMARY]) on [PRIMARY]GOThen: Insert into Table1 (filed1,filed2) Select Filed1,filed2 from Table2 (this is definitely not a correct notation, self-increment ID problem)thus: SET IDENTITY_INSERT [Table_1] on INSERT to Table1 (id,filed1,filed2) Select Id,filed1,filed2 from Table1 SET IDENTITY _insert [Table_1] Off (SET identity_insert [table_1] on | | OFF allows an explicit value to be inserted into the identity column of th

(' kill '[email protected])FETCH NEXT from #tb into @spidEndClose #tbDeallocate #tb GOSET QUOTED_IDENTIFIER OFFGOSET ANSI_NULLS onGO SET QUOTED_IDENTIFIER ONGOSET ANSI_NULLS onGO ALTER proc P_killspid@dbname varchar (200)--the database name of the process to be closedAsdeclare @sql nvarchar (500)declare @spid nvarchar (20) DECLARE #tb cursor FORSelect Spid=cast (spid as varchar) from master: sysprocesses where dbid=db_id (@dbname)Open #tbFETCH NEXT

1. Get all database names:SELECT Name from Master. sysdatabases ORDER by Name2. Get all table names:SELECT Name from DatabaseName. SysObjects Where xtype= ' U ' ORDER by Namextype= ' U ': represents all user tables;xtype= ' S ': denotes all system tables;3. Get all field names:SELECT Name from syscolumns WHERE id=object_id (' TableName ')in Oracleselect * from User_tab_columns;select * from User_tables;This

partition functionAlter PARTITION function pf_for_mytable ()--see no this without adding datatime is wrong.Split Range (' 2016-01-01 ');GoOperation 4,removing partitionsThe first step:Alter PARTITION function pf_for_mytable ()Merge range (' 2016-01-01 ');GoOperation 5,Move a partition to a different tablePre-preparatory workCREATE TABLE Mytablehistory (DT datetime, DataValue nvarchar (30));Go--Two tables are defined exactly the same, no partitioning

Data dictionary is a good thing, for development, maintenance is very important.However, it is not convenient to write the description in SQL Server, how to simplify and add the modified extended attributes in bulk?It would be nice to add 2 tables and 5 stored procedures, 2 triggers, and a table-valued function.Execute the following

Label:Sql server 1. Determine whether the table users existif object_id(N'Users'N'U') is not NULL Print 'exist' Else Print 'does not exist' 2. Determine if the Name column exists in the table usersif exists(Select * fromsyscolumnswhereId=object_id('Users') andName='Name'collate Chinese_prc_ci_ai_ws)Print 'exist' Else Print 'does not exist'Note: Collate chinese_prc_ci_ai_ws represents case-insensitive Oracle 1. Judging whether the t