sql server update statement with join

Right () Returns the character to the right of a string RTRIM () Remove the space to the right of the string UPPER () Convert a string to uppercase For example: Select Name,upper (name) as Upname...Result: Chen ChenDate and time processing functionsThe DATEPART () function has two parameters, one is the returned component, and the date from which the component is returned.For example: Retrieving all orders for 2012 yearsSelect Or

1 Declare @name varchar( +)2 Declare @sql varchar( +)3 4 if object_id('tempdb: #space') is not NULL Drop Table#Space5 Create Table#Space(Namevarchar( -), Rowsbigint, reservedvarchar( A), datavarchar( A), index_sizevarchar( A), unusedvarchar( A))6 7 DeclareSpcursorLocal for Select '['+Name+']' fromsysobjectswhereType= 'u'8 OpenSP9 FetchSp into @nameTen while @ @fetch_status = 0 One begin A Set @sql = 'INS

SELECT type,--clerk type sum (virtual_memory_reserved_kb) as vm_reserved_kb,--reserved Memory sum (VIRTUAL_MEMORY_COMMITTED_KB) as VM_COMMITTED_KB,--committed memory sum (awe_allocated_kb) as awe_allocated_kb,--the memory sum (shared_memory_reserved_kb) as SM used when opening awe _RESERVED_KB,--shared reserved memory sum (shared_memory_committed_kb) as sm_committed_kb,--shared commit memory sum (single_pages_kb) as SINLGEPAGE_KB,--Buffer pool stolen Memory sum (multi_pages_kb) as multipage_kb--

Today I want to talk about a particular problem that I will encounter every time I talk about lock and block (Locking Blocking) in SQL Server: Why do we need to update the lock in SQL Server? Before we explain the reasons for the specific needs, first I would like to introd

Method 1:Applies to SQL Server 2000/2005SELECT TOP Page Size *From table1WHERE ID not in ( SELECT TOP Page Size * (pages-1) ID from table1 ORDER by ID )ORDER by IDMethod 2:Applies to SQL Server 2000/2005SELECT TOP Page Size *From table1WHERE ID > (

\ ' database name \ ', \ ' autoshrink\ ', \ ' true\ '\\\ ' Add field general functionSub AddColumn (Tablename,columnname,columntype)Conn.execute (\ "Alter Table \" tablename\ "ADD \" columnname\ "\" columntype\ "\")End Sub\\\ ' Change field general functionSub Modcolumn (Tablename,columnname,columntype)Conn.execute (\ "Alter Table \" tablename\ "alter Column \" columnname\ "\" columntype\ "\")End Sub\\\ ' Check if the table existsSql=\ "SELECT COUNT (*) as Dida from sysobjects where id = object

, @ objectID END CLOSE publish_cursor DEALLOCATE publish_cursor GO Select p. publishid, p. contentid, a. contentid, p. objectID, a. articleID from publish p Inner join articles a on a. articleID = p. objectID Where objectid> 0 and p. contentid And (p. cellid = 160 or cellid = 138) Go -- Update publish set contentid = 0 where (cellid = 160 or cellid = 138) -- Select * from publish p where (p. cellid = 16

The most obvious feature of SQL differs from other programming languages is the order in which the code is processed. In a large number programming language, code is processed in encoded order, but in the SQL language, the first processed clause is the FROM clause, although the SELECT statement first appears, but is almost always finally processed.Each step produ

Tags: isnull font name ROM null arch weight 2.x arcTable information field information in SQL Server These things are also placed in the system tables, and the following SQL statement is used to query the field information for a table. SelectT1.name Table_name,t2.namecol_name, T3.name+'('+Convert(varchar( $), T2.length

whether you get rid of the query or not. Example The following query selects the names of all tables in the pubs database, and the clustered index (if any) for each table. If you do not have a clustered index, the table name still appears in the list and is displayed as a dashed line in the clustered index column. Two queries return the same result set, but the first one uses a subquery and the second uses an outer join. Compare query plans generat

Original: SQL Server Tuning Series play turn three (use index hint (Hint) to boot statement maximum optimization run)ObjectiveThis article continues to play the content of the module, about the location of the index in SQL Server No need to say, this article will analyze how

Original: SQL SERVER execution Order of an SQL statementOrder of execution of an SQL statement1, from (Tell the program from which table if the table expression is still the same order)2. Where (conditional filter predicate filter)3. Group BY (Group)4. Having (grouping predicate filtering)5. Select (expression)6, Expre

'other' END asindex Type, Case when EXISTS (SELECT 1 fromsysobjectsWHEREXtype= 'PK' andNameinch (SELECTname fromsysindexesWHEREIndidinch (SELECTindid fromSysindexkeysWHEREId=Syscolumns.id andColid=syscolumns.colid ))) Then '√' ELSE "' END asprimary KEY, Case whenSysforeignkeys.constid is NULL Then "' ELSE '√' END asExternal Health fromsyscolumns--Data table field INNER JOINsysobjects--Data Objects onSysobjects.id=syscolumns.idINNER JOINSystypes--Data Type onSyscolumns.xtyp

One-to-Multiple SQL statement syntax for fields between SQL SERVER tables and tables, serversql Table A1 A2 A3 A4 01 02 03 04 03 04 01 02 Table B B1 B2 01 Zhang San 02 Li Si 03

Share SQL Server lock table statements. For more information, see Share SQL Server lock table statements. For more information, see Lock a table in the database SELECT * FROM table WITH (HOLDLOCK) Note: What is the difference between locking a database table? SELECT * FROM table WITH (HOLDLOCK) Other transactions

In SQL Server, we sometimes need to obtain one of multiple duplicate data records. For more information, see the following statement. In SQL Server, we sometimes need to obtain one of multiple duplicate data records. For more information, see the following

Note: The defined SQL statement to execute must be of type nvarcharCREATE PROC P_branchordersalesstatistics@beginTime DateTime,--Start time@endTime DateTime,--End time@branchCode varchar (20),--store code@NewMemberCount int out,--number of new members@OrderCount int out,--order quantity@SalesTotalPrice Decimal (18,2) out,--Sales@ProfitTotalPrice Decimal (18,2) out--gross marginAsBEGINDECLARE @sqlfilter nvar

Select Name,salespersonid from Sales.Store where Name between ' G ' and ' J ' and SalesPersonID > 283 ORDER by Sal Espersonid,name DESC/ASCThe use of the between of this statement is still very innovative, this between is the beginning of G and J between the beginning, do not know what the Chinese characters will be?Group BY, often with the min max sum avg, with the as name alias. The group by Mate aggregation function is commonly used.When Count (col

Two tables linked to different libraries in the same server This approach is limited to databases on the same server.I. Establishment of two databases, library a (table a) and Library B (table B).Second, to two libraries to assign the same account permissions.Use the following statement when querying: The code is as follows Copy Code SELECT * from A.DBO.A, b.dbo.b where a.dbo.a

Tags: style blog color ar strong for data div SPDescription--PRIMARY KEY constraint (Primary key constraint): The data of the primary key column is required to be unique and is not allowed to be empty.--Unique Constraint: Requires the column to be unique, allowed to be empty, but only one null value can occur.--Check Constraint: A column value range limit, formatting restrictions, and so on, such as age-related constraints.--Default Constraint: The default value of a column, such as our male cla