sql server compare tables

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 = LTrim (str ((usedpages-pages) * 8.,15,0) +

SQL Server Temporary tables of are divided into local temporary tables and global temporary tables, which are described as follows in books online: There are two types of temporary tables: local and global, both of which ha

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 autom

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 ********** Delete all table foreign KEY constraints *************************/ DECLARE c1 cursor for

Tags: arc sql ima LTE div database pre hone alterCreate DATABASE test go use test go CREATE TABLE UserInfo ( Id INT IDENTITY PRIMARY KEY, Name VARCHAR, Age INT, Sex BIT, Address VARCHAR (+) ) GO ALTER TABLE dbo. UserInfo ADD Phone VARCHAR (one) ALTER TABLE dbo. UserInfo ADD CONSTRAINT Age_c CHECK (age>0 and age　　SQL SERVER build libraries,

after the where can be added not --7 alias as SelectB.freezetime,b.* fromQ_user asbSelectB.* from(Select * fromQ_user) bSelectUid asNumber, uName name, upwd password fromQ_user--8 Top Query (how many lines before query) --SQL Available Select Top Ten * fromQ_userwhereUid not inch(Select Top TenUid fromQ_user)--query not the first 10 data (i.e. 20-30 data) in the first 10 Select * fromQ_user--Aggregation Functions --avg Select AVG(uId) asAverage

sys.objects WHERE type = ' P ') contains only user stored procedures, but execution sp_stored_procedures can query all kinds of stored procedures and all functions except system functions3.sys.modules ViewReturns a row for each system object that contains the SQL language definition module, with the associated SQL module for system objects of type FN, IF, P, PC, TF, and V.Therefore, for these types of obje

Tags: Combo key tar PNG create use share task today GESIn the process of using SQL Server, we may need to copy the table from one database to another, and today I'll show you how and how to do this. It may be a simple thing for most people, but it is better to record it than to write a good memory. Hope can help the students who need ... Copy table structure: First step: First, open and connect to

= "file size:" + (inputfile. postedfile. contentlength/1024). tostring () + "K byte (s )";}Else{Labelupresult. Text = "select the file you want to upload! ";Labelfilename. Text = "";Labelfileext. Text = "";Labelfilesize. Text = "";} } Private void button2_click (Object sender, system. eventargs E){Sqlconnection conn = new sqlconnection (configurationsettings. etettings ["DSN"]);// Connect to the Excel Data SourceString excelconnstring = @ "provider = Microsoft. Jet. oledb.4.0; Data Source =" +

Tags: sys database name SQL Server int distrib user ATI org table nameexec sp_configure ' show advanced options ', 1 reconfigureexec sp_configure ' Ad Hoc distributed Queries ', 1 reconfigureSELECT * into t_system_organization_bak_20180308From OPENROWSET (' SQLOLEDB ', ' 10.***.***.***, port; ' User name '; ' Password ', [Database name].dbo. Table name]exec sp_configure ' Ad Hoc distributed Queries ', 0 rec

Label:SQL Server: Bulk Delete table via sys.tables, or roll back table 1 beginTry2 Drop Table#temp103 EndTry4 beginCatch5 EndCatch6 7 Select 'drop/*truncate*/table tuning.'+Name asDroptable,row_number () Over(Order byName asRowNumber8 into#temp109 fromSys.tableswhereName like 'member%' andSchema_name (schema_id)='dbo' Ten One Select * from#temp10 A - Declare @rownumber int; - Declare @records int; the Declare @droptable nvarchar( -);

The computer re-installed sqlserver2008 R2 (English), New data table, new field, found that there is a field type set wrong, want to modify the field type, and the table has been saved, that is, after saving to modify the field properties. However, the modified settings cannot be saved, prompting "saving changes is not permitted" (specifically)Workaround:Find the Tools->options in the menu bar, find the designers, and then prevent saving changes that require table re_creation front of the tick,

) + 'id from # Tmp )'?????? Exec Sp_ExecuteSql @ Str, n'@ WokNo Varchar (500) output', @ WokNo OutPut?????? Select @ WokNo, @ I -- display the employee ID in one row?????? Set @ I = @ I + 1??? End TemporaryTableYesCreateLocal and globalTemporaryTable. LocalTemporaryThe table is only visible in the current session; GlobalTemporaryThe table is visible in all sessions.LocalTemporaryThe table name is preceded by a number character (# table_name), while the globalTemporaryThe table name is preceded b

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

change the resource status outside the function scope, which is also called side effect in SQL Server ). However, it is not recommended to use a large temporary result set in a function, because placing such a function in a query may cause obvious performance problems, therefore, Batch scripts such as stored procedures are generally used in this case. The reason why dynamic scripts do not support table v

Fieldtype = "char" Case 1, 135 Fieldtype = "datetime" Case 1, 131 Fieldtype = "decimal" Case 5 Fieldtype = "float" Case 1, 205 Fieldtype = "image" Case 3 Fieldtype = "int" Case 6 Fieldtype = "money" Case 1, 130 Fieldtype = "nchar" Case 1, 203 Fieldtype = "ntext" Case 1, 131 Fieldtype = "numeric" Case 1, 202 Fieldtype = "nvarchar" Case 4 Fieldtype = "real" Case 1, 135 Fieldtype = "smalldatetime" Case 2 Fieldtype = "smallmoney" Case 6 Field

/// /// Obtain the names of all database servers in the LAN. /// /// Server Name Array Public List String > Getsqlservernames () {datatable datasources =Sqlclientfactory. instance. createdatasourceenumerator (). getdatasources (); datacolumn Column = Datasources. Columns [ " InstanceName " ]; Datacolumn column2 = Datasources. Columns [ " Servername " ]; Datarowcollection rows = Datasources. Rows; L

, ") ELSE ' END, ParentID = 0, Colorder = 0 from syscolumns A Left JOIN systypes B on a.xusertype = B.xusertype INNER JOIN SYSOBJECTS D on a.id = d.id

I. Querying the database (Sys.databases--select *from sys.databases where name= ' Select *fromwhere name='MyDatabase'Second, query table (sysobjects--select *from sysobjects where id=object_id (' Select *fromwhere id=object_id ('studentsinfo')Third, query column (Syscolumns--select COUNT (*) from syscolumns where name= ' Select from where name='sname' and id=object_id ('studentsinfo ')Iv. querying a stored procedure or view (SELECT * from sysobjects where name= '

. nvarchar () double-byte storage. Text: Large space.　　C. Date data type: Datetime,smalldatetime　　D. Photo type: Image, generally not used, only the database record location.4. FOREIGN KEY constraintsRight-to-load, from table (foreign key table) to main table (primary key table).The data in the primary table cannot be deleted until the data in the child table is deleted.5. Check constraintsColumn value right--->check constraint--add keyword (email like '%@% ')6. Build diagramGraph right---Select