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Have friends often find their own database of all the content to insert some code, if you want to record a table to delete, too much trouble, the following I found in the online can be bulk Delete method, in fact, the batch to replace the malicious code, very fast.DECLARE @t varchar (255), @c varchar (255) Declare table_cursor cursor for select a.name,b.name from sysobjects a,syscolumns b , systypes C where
delete the child table records before deleting the primary table records.When you delete a data record, you tend to think of the delete and TRUNCATE statements immediately, but when you encounter a constraint between two or more tables, both statements may fail, and most of all, both commands can only manipulate one table at a time. So what do you do when you actually encounter
Tags: style blog color io os using AR for fileSQL Server deletes all tables in the database-------------------------------------------------------------------------------------------Open SQL Server Management Studio and create a new query in the Open XXX. In the
following statement:EXEC sp_tablesIt is the table information that filters out all records that table_type equals table in the result set.Other useful system functions--Read all table names in the librarySelect name from sysobjects where xtype= ' u '--Reads all column names of the specified tableSelect name from sysco
I am working on a program for the SQL Server database. I want to read the column information in the database, find a lot of information from the Internet, and finally find out the ideal SQL statement, after execution, the returned
mCursor cursorForSelect name from sysobjects where xtype = 'u'Open mCursorFetch NEXT from mCursor into @ TableNameWhile @ fetch_status = 0BeginSet @ SQL = 'Insert into tablespace'Set @ SQL = @ SQL + 'exec sp_spaceused ''' + @ TableName + ''''Exec (@ SQL)Fetch NEXT from m
Label:2010-01-26 sp_spaceused can view the space occupied by a table, but cannot view all the tables at once. Today, we studied this SP and wrote the following query: --Refresh system dataDBCC UPDATEUSAGE (0) with NO_INFOMSGS --8k per pageSelect name = Name,id,rows = Convert (char (one), rows),reserved = LTrim (str (reservedpages * 8.,15,0) + ' KB '),data = LTrim (str (pages * 8.,15,0) + ' KB '),index_size
Label:To delete a database, or to delete all tables in the database (delete table structure and data), you need to delete the foreign key constraint between the tables before you can delete the table. such as deleting all tables in the database Db_wy:--/1th Step ********** D
Program Idea: Use select name from sysobjects where xtype = 'U' to obtain all tables, and then open the table cyclically, according to rs_colums.fields (I ). name: field name. fieldtype (rs_colums.fields (I ). type) to obtain the field type, rs_colums.fields (I ). definedsize 'width
Because rs_colums.fields (I). Type Returns numbers, a fieldtype function is written in the program to convert it to a Chin
=columnproperty (a.id,a.name,' PRECISION '),
Number of decimal digits =IsNull(ColumnProperty (a.id,a.name,' scale '), 0),
Allow null = case Time a.isnullable=1 then ' √ 'else ' end,
Default value =isnull(E.text,"),
Field Description =isnull(G.[value],")
from Syscolumns a
Left Join systypes b on A.xusertype=b.xusertype
Inner join sysobjects D on (a.id=d.id)and (d.xtype=' U ')and (d.name ' dtproperties ')
Left Join syscomments e on a.cdefault=e.id
Left join sys
Label: If table failure is deleted because of a foreign KEY constraint, all constraints are removed first:--/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(80
key endB.name astype, A.length asthe number of bytes consumed,ColumnProperty(a.ID, A.name,'PRECISION') aslength,ISNULL(ColumnProperty(a.ID, A.name,' Scale'),0) asNumber of decimal digits, ( Case whenA.isnullable= 1 Then '√' ELSE "' END) asallow NULL,ISNULL(E.text,"') asdefault value,ISNULL(g.[value],"') asField Description fromsyscolumns a Left JOINSystypes b onA.xtype=B.xusertypeINNER JOINsysobjects D ona.ID=d.id andD.xtype= 'U' andD.
Easy to delete all the data tables in the database, empty the database, some constraints, not directly delete, you need to delete the constraints in the library, the code is as follows
Copy Code code as follows:
--Delete all constraints
DECLARE C1 Cursor FOR
Select ' ALTER TABLE [' + object_name (parent_obj) + '] drop constraint [' +name+ ']; '
forward way. You can generate DDL database scripts. This document describes reverse engineering. Start!
First open EA, create a class chart, class digoal, right-click, "Import dB schema from ODBC"
Then click the database name behind the database name... Button. The ODBC link is displayed. Select the tab page of machine data source and click "new.
When selecting ODBC driver, note that "SQL native client" should be selected for sqlserver2005, an
Label:This article from: http://www.cnblogs.com/yjss/articles/2065664.html 1. Delete a table Use database name
declare mycur cursor local for SELECT [name] from dbo.sysobjects where xtype= ' U '
declare @name varchar (10 0)
OPEN mycur
FETCH NEXT from Mycur to @name while
@ @FETCH_STATUS = 0
BEGIN
exec (' drop table ' + @na Me)
FETCH NEXT from mycur to @name
END
CLOSE mycur
2. Delete a view Use database name
declare mycur cursor local for SELECT [name] from dbo.sysobjects where xtype=
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 wor
From: http://www.cnblogs.com/chillsrc/archive/2008/04/15/1154186.html
I. Environment and test requirements
1. Test Environment
① Hardware: CPU: 2 GB, memory: 2 GB
② Database: SQL 2005
The result varies depending on the machine configuration.
2. Performance Test Description
① Query after the database server is restarted, that is, the result of the first query.② Compare the performance of databa
To find these stored procedures, you can spend time searching the internet, looking at some stored procedures that you have not yet known, and perhaps in one or two hours you may find that you want to ... Maybe you're lucky to find that other people in their article lists all the stored procedures, functions, and views
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