sql server update multiple columns

The first step:Build tableCREATE table t1 (x int, y int);CREATE table t2 (x int, y int);GoINSERT into T1 (x, Y) VALUES (2,3), (3,4), (4,5), (5,6);INSERT into T2 (x, Y) values (2,3);GoStep Two:Delete Related rows in the T1 tableDelete aFrom T1 as a inner joins T2 as B on a.x=b.x;Step Three:The second step is to remove the two lines (2,3) from the T1 table. But be careful that the delete here can delete only one table, and you cannot delete multiple tab

Tags: object name nio table ISP character technology VAR conversionConvert table 1 to table 2: Table 1 Table 2 To get the results of table 2, you need to go through several pivot transformations, and then join together by union, the code is as follows: 1 SelectID, type,sum([1])[1],sum([2])[2],sum([3])[3],sum([4])[4] from 2 ( 3 Select 'a' asType* fromTable_14Pivotsum(a) forPinch([1],[2],[3],[4])) asa5 Union All 6 Select 'b' asType* fromTable_17Pivotsum(b) forPinch([1],[2],[3],[4])

intif (@sys_Begin Set @sys_Begin =0ElseSet @[email protected]_begin-1IF ISNULL (@sys_Where, ") ="SET @new_where1 = ' 'ELSESET @new_where1 = ' WHERE ' + @sys_WhereIF ISNULL (@sys_Order, ') BEGINSET @new_order1 = ' ORDER by ' + Replace (@sys_Order, ' desc ', ')SET @new_order1 = Replace (@new_order1, ' ASC ', ' desc ')SET @new_order2 = ' ORDER by ' + @sys_OrderENDELSEBEGINSET @new_order1 = ' ORDER by ID DESC 'SET @new_order2 = ' ORDER by ID ASC 'ENDSET @SqlCount = ' SELECT @RCount =count (1), @PCo

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( -);

version is php5.4, so we should choose the two DLL files that arePhp_pdo_sqlsrv_54_ts.dll and Php_sqlsrv_54_nts.dll, such asCopy the two DLLs into the corresponding PHP version of the Ext folder as before.At this time we go back to the site management interface, right-click the site to open the corresponding php.ini with the file.In an open php.ini fileExtension=php_sqlsrv_54_ts.dllExtension=php_pdo_sqlsrv_54_ts.dllAdd the two lines above and search for the "mssql.secure_connection" section.Cha

Install the system Win7 has been unable to install sqlserver2012, later installed sqlserver2005, the former period of time because of the need to use sqlserver2012, try to install again, unexpectedly installed successfully. However, the sqlserver2012 remote connection is always unsuccessful, and the host name \ Instance name can be successful. Many methods have been found on the internet, and none have succeeded. I'll list all these methods first.1. Double-click TCP/IP on the rightOpen the IP Ad

Problems that occur when you update a table that does not have a primary key set:Cause of the problem:Most of this is due to the absence of a primary key (PK) that causes several identical data to exist in the same tableWhen the DBMS is stored, only one piece of data is stored, because the DBMS is optimized to reduce data redundancy. So deleting or updating a duplicate data is reachingWorkaround:It is recommended to set the primary key to check for th

SQL Server database paging query has always been a short board of SQL Server, so I have nothing to worry about. I have come up with several methods, for example, table ARTICLE, field ID, YEAR... (others omitted). There are 53210 million pieces of data (the customer's actual data is not big), 30 pieces of data are queri

Tags: data SP problem BS database server SQL as installationWhen SQL Server accesses a database table in Oracle remotely:The remote syntax is typically: SELECT * from OpenQuery (Oracle linked server name, ' query statement ')Eg:select * from OPENQUERY (QTX, ' select * from s

In our daily operations, we have to insert multiple records to a table in the database at a time, but the first thought is to copy and paste n multiple repeated insert into statements, in case an error occurs when a semicolon or multiple Commas are missing, it will be a waste of time and work.In addition to the method mentioned above, there are actually two metho

The automated management of multiple instances of a range of SQL Server is called multi-server management. With multi-server administration, you can do the following:Manage two or more servers.Schedule the information flow for the data warehouse between Enterprise servers.To

Example:Table stuinfo, which has three fields: recno (auto-increment), stuid, and stuname The SQL statement used to create the table is as follows: Create Table [stuinfo] ( [Recno] [int] identity (1, 1) not null, [Stuid] [varchar] (10) Collate chinese_prc_ci_as not null, [Stuname] [varchar] (10) Collate chinese_prc_ci_as not null ) On [primary] Go 1. Check the repeated values of one or more

In our daily operations, we inevitably have a table on the database, to insert more than one record, but the first thought is to copy, paste n more than repeated insert into the statement, in case one less a semicolon, or more than a comma, and so on, to create errors, to find can be exhausted, not only waste time, and delayed work. In addition to the method mentioned above, there are actually two methods, compared to the previous one should be concise. The first is the previous method:

In our project development, we often encounter the requirements of multiple conditional fuzzy queries. There are two common solutions for this: one is to stitch the SQL string at the end of the program, construct the corresponding SQL string based on whether a condition is selected, and use the dynamic SQL statement in

Whether int or varchar is used, it is hard to cope with multiple Status queries. For example, in general thinking, The Enum settings for CustomerStatus are as follows: Copy codeThe Code is as follows: [Serializable] Public enum CustomerStatus { New = 0, Active = 1, Overdue = 2, Sushortded = 3, Closing = 4, Closed = 5 } The Status value is stored in the database as an int.What should I do if I want to search for a Customer in the Active, Overdue, and s

Tags: div Select server data log row data exists in BSP spanInserting multiple rows of data, having more than one piece of data in the original table, and building a new table can be cumbersome, using the following syntax:Add data from an existing table to a table that already exists by using the Insert Select statementSyntax: Insert intoselectfromNote: The AddressList table must be pre-created and has a co

dbo. ClassInfo as CON t.class=c.id where c.id= ' 1 '--where the way to do multiple table updates update t SET T.remark = ' class 02 student ' from dbo. Student as T, dbo. ClassInfo as Cwhere t.class=c.id and c.id= ' 2 '--7, Output view data updated before and after update dbo. Student set stusex= ' female ' OUTPUT inserted.stusex,deleted.stusexwhere stuid= ' 007

static void Update (String connstring, DataTable table){SqlConnection conn = new SqlConnection (connstring);SqlCommand COMM = conn. CreateCommand ();Comm.commandtimeout = _commandtimeout;Comm.commandtype = CommandType.Text;SqlDataAdapter adapter = new SqlDataAdapter (comm);SqlCommandBuilder Commandbulider = new SqlCommandBuilder (adapter);Commandbulider.conflictoption = conflictoption.overwritechanges;Try{Conn. Open ();Set the number of processing ba

So far, you have only tried to use an SQL statement to retrieve data from a table. You can also use a SELECT statement to retrieve data from multiple tables at the same time. You only need to list the names of the tables from which data is to be retrieved in the from clause of the SELECT statement: Select au_lname, title from authors, titles When this select statement is executed, data is retrieved from bo

--Create a test tableCreate Table#Temp(seqint Identity, namesvarchar( $))Insert into#Temp(names)Values('Zhang San, John Doe'),('China, USA, Brazil'),('Shenzhen, Shanghai, Beijing, Guangzhou, Harbin'),('football, basketball, table tennis, billiards')The goal is to split the names column separated by commas into multiple rows, resulting in the result:1 sheets of three1 John Doe2 China2 USA2 Brazil3 Shenzhen3 Shanghai3 Beijing3 Guangzhou3 Harbin4 Footba