Tags: style blog http color os io ar for dataHow many tables are in SQL Server query database SELECT * from sysobjects WHERE (xtype = ' U ')C = CHECK constraintD = defaults or Default constraintsF = FOREIGN KEY constraintL = LogFN = Scalar functionIF = inline table functionP = stored procedurePK = PRIMARY KEY constraint (type is K)RF = copy Filter stored procedu
In sqlserver, a simple combination of sp_spaceused and sp_msforeachtable stored procedures can easily calculate the size of the user data table, including the total number of records and space usage, which is very practical, both sqlserver2k and sqlserver2005 passed the test.
/**/
/*1. Exec sp_spaceused 'table name' (SQL statistics, which may be inaccurate after a large number of transaction operations)2. Exec sp_spaceused 'table name', true (upd
Label:Data from the database in the work to export, but found that the exported Excel column names are field names (in English), to collect data on how to change the field name to Chinese names, and found that Oracle and SQL Server (SQLSERVER2008R2) is different, as follows: SQL Server database: system table: ---Get in
SQL Server 2008 synchronous replication creates new tables/functions/stored procedures (without reinitialization of snapshots)One, in the production environment already has the transaction replication (the replication type is the transactional publication), needs the existing published database to add the table, the view, the stored procedure and so on, these cha
Tags: style blog http io ar os using SP strongOriginal: SQL Server 2008|2012 block save changes requiring re-creation of tablesIt is not very understandable why the option to block saving changes that require re-creation of tables is included in SQL Server 2008 and later ver
Ind_attribute.is_ Disabled as [is disabled] 4 from (5 select Tab_name,index_name, [Co_names]=stuff ((SELECT ', ' +[co_name ') from 6 (select Tab. Name as Tab_name,ind. Name as index_name,col.name as Co_name from sys.indexes IND 7 INNER JOIN Sys.tables tab on Ind. object_id = tab.object_id and Ind.type in (8) inner join sys.index_columns index_columns on tab.object_id = Index_colu mns.object_id and ind.index_id = index_columns.index_id 9 inner join sys.columns Col on tab.object_id = col.object_i
There are many database zones on the Internet. yesky. the SQL statements in the comdevsjktarget_balanksqlserver database dictionary are neat and neat. I have sorted out some ideas in my work and summarized the SQL code as follows. I only passed the test in SQLSERVER2000, hoping to help you. 1. SqlServer database dictionary-table structure.
There are a lot of database areas on the Internet href = "http://dev
transactions from using this table during a transaction READPAST let SQL Server skip any locking lines, perform transactions, apply to READ UNCOMMITTED transaction isolation LEVEL only skip RID lock, skip page, zone and table lockRowlock forcing the use of row locksUplock forcing updates to be used when reading tables without sharing locks To view the locked ta
Tags: changing SQL from structure performing LSE highlight insert UPDFirst, two tables were created, Test1 and test2, with the expectation that the relevant records of Test2 could be changed at the same time when the test1 was changed. Assume that Test1 is the same as the table structure of Test2, as shown in the following table
Name
Age
The trigger impl
with a table without a primary key or unique key? If your table does not has a unique index (or a PRIMARY KEY constraint or UNIQUE key constraint, both of which create a U Nique index behind the scenes), then your dynamic cursor is converted to a static cursor. And all static cursors must is read only. If one of the tables referenced by the cursor has no unique index, the cursor would be converted to STATI
Long unused SQL Server has been using NAVICAT to handle a variety of databases, it feels convenient to use, but because of the actual need to use SQL Server to create a new database, but unexpectedly encountered previously never encountered problems.After the construction of the table, want to modify some properties, t
It is not very understandable why the option to block saving changes that require re-creation of tables is included in SQL Server 2008 and later versions. It is too troublesome to be "blocked" every time the table structure is modified. It's not convenient. Problem Description:The solution to the error of SQL
information changes, it is not much to say, this will not only occur on the temporary table, the ordinary physical table will also be due to the statistical information changes resulting in recompilation, more than a temporary table, the only difference is that the temporary table and the physical table statistics change the threshold value is not the sameWe knowThis is also easy to verify that the thresholds updated by the temporal table statistics depend on the amplitude of the data in the te
What is the reason why SQL Server table hints cannot modify the table structure? Here's how to handle the problem, and if you've had problems with SQL Server table modifications, you might want to take a look.The newly installed SQL Serv
Tags: SQL Server tables, views, indexesFirst, the table related1. Create
Use[test] Go setansi_nullson go setquoted_identifieron go CREATETABLE[dbo] . [Ceshi] ([Id][int]notnull, [Name][varchar (]null), CONSTRAINT[PK_Ceshi] primarykeyclustered ([Id]asc) with (Pad_index=off,statistics_ norecompute=off,ignore_dup_key=off,allow_row_locks=on, Allow_page_lo
You can obtain the desired data table information from the system table sysobjects in the database. The specific SQL statement is as follows:
Select name from sysobjects where type = 'U ';
Because the system table sysobjects stores all database objects, type indicates the types of various objects, including:U = User tableS = system tableC = check ConstraintsD =
sufficient null. If you swap two table positions, it's fine.Understanding of the left and right connections.For example, by connecting the above query, all the customer information for the next order is queried.1 Select a.custid,b.custid,a.contactname,a.fax,2 count (b.orderid) as N ' Customer order quantity ' 3 from Sales.customers a right joins sales.orders b4 on a.custid=b.custid 5 Group by A.custid, A.fax, A.contactname,b.custid 6 O
Label:1, longitudinal table turn horizontal table TABLE_A structure of the longitudinal table: Post-conversion structure: SQL example of a vertical table to a table: SELECT Name,SUM (case when Course = N ' language ' then GradeELSE 0END) as Chinese,SUM (case when Course = N ' math ' then GradeELSE 0END) as Mathematics,SUM (case when Course = N ' English ' then GradeELSE 0END) as 中文版FROM dbo. Table_aGROUP by Name 2, horizontal table to the longitudin
One install Sybase client
Version: Sybase Client 11.9.2 for NT
1 after the installation completes, the operation starts-> program->sybase->dsedit
2 Select Menu ' Server Object ',-> ' Add ' to enter service name like 1.70
3 then select ' 1.70 ' in the server list, double-click the dialog box on the right, and select Add in the Network Address dialog box, for exa
One install Sybase client
Version: Sybase Client 11.9.2 for NT
1 after the installation completes, the operation starts-> program->sybase->dsedit
2 Select Menu ' Server Object ',-> ' Add ' to enter service name like 1.70
3 then select ' 1.70 ' in the server list, double-click the dialog box on the right, and select Add in the Network Address dialog box, for e
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