sql server update multiple columns

Label:Add the settings for the database multi-field composite primary key.First, a table cannot have more than one primary key. But there are multiple fields that can be combined into one primary key, which is why sometimes the table has multiple fields with a primary key, because they are combined into a primary key.We can set it through the Enterprise Manager or through the T-

The title rang for half a day or felt lied.Actually, there's this piece of data.To become more than one.Code:; withRoy as (SELECT [Datarowstartindex] , [Datarowendindex] , [Datacolumnstartindex] , [Datacolumnendindex] , [Separator], [SheetName]=CAST( Left([SheetName],CHARINDEX(',',[SheetName]+',')-1) as nvarchar( -)), Split=CAST(STUFF([SheetName]+',',1,CHARINDEX(',',[SheetName]+','),"') as NVARCHAR( -)) fromAccesstypeforexcel UNION All S

key lookup in read operationSolution: After understanding the cause of the deadlock, it is easier to solve.We can start with the following aspects.A remove additional keys to find locks required for lockCancel acquisition Lock when reading Operation BA.1 We can create an overwrite index to include the query column in the SELECT statement in the specified indexA.2 According to the query requirements, step-by, get query columns through the clustered in

and from this table column: Keywords through a derived table connection to uf_splitstringtotable (filehistory.keywords). The specific code is as follows: SELECTt1.[Id], T1.[Keywords], T1.[FileName], T1.[fileextension], T1.[Createduser], T1.[Createdtime], T1.[Importtype], i.item as keyword fromfilehistory T1OUTERAPPLY uf_splitstringtotable (t1. Keywords,',') I After the code executes successfully, the following results are returned: In this way, we can finish the results we need. 2015,fighting

Label:The SQL Server UPDATE statement is used to update the data, which gives you a detailed description of the syntax of the SQL Server Update statement, and hopefully allows you to le

]. [getRecordByPage]@ TotalPage int output, -- total number of pages@ RowsCount int output, -- total number of entries@ PageSize int, -- how much data per page@ CurrentPage int, -- current page number@ SelectFields nvarchar (1000), -- select statement but does not contain select@ IdField nvarchar (50), -- primary key column@ OrderField nvarchar (50), -- sorting field. If multiple fields exist, the sorting conditions (asc/desc) must be added except the

SQL Server UPDATE statement is used to update data, the following is a detailed description of the syntax aspects of SQL Server update statements, hoping to give you a better understand

Similar to the following: Select A.key,b.key,c.key from A,b,c where trim (a.key) =trim (B.FK) and trim (A.col) =trim (c.pk). In Table A (more than 200 records), the associated schedule B (more than 40,000 records) was used for 1 seconds, which may vary between machines, but slightly slower than the trim speed, but not particularly noticeable. Its SQL statement resembles the following: Select A.key,b.key from A,b where trim (a.key) =trim (B.FK)

The example in this article describes how the ASP.net implementation imports multiple sheet data from Excel into SQL Server. Share to everyone for your reference, specific as follows: The public DataSet GetDataSet (string filePath) {string connstr = string. Format ("Provider=Microsoft.Jet.OLEDB.4.0;Data source= '" + FilePath + "); Extended properties= ' Exc

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

of data in the table or indexed view is the result of the query.INDEX_ID: The index ID of the table or indexed view. If the table has no indexes, there will be a row of index_id=0 records in Sys.dm_db_partition_stats, if there is a clustered index (and only one clustered index in a table), then in Sys.dm_db_partition_ There is a row of index_id=1 records in stats, and the corresponding Index_id=0 records are not available. If the table has multiple r

Temporal table mode for multiple record traversalDeclare @oper_cart_item_id bigint; Declare @oper_cart_id bigint; Declare @the_last_changed_date datetime; Declare @oper_cust_id int; Select *,0 asFlag into#shoppingcart_temp fromdeleted; while exists(Select Top 1 1 from#shoppingcart_temp TwhereT.flag= 0 ) begin Select Top 1 @oper_cart_item_id =CART_ITEM_ID,@oper_cart_id =cart_id,@oper_cust_id =cust_id,@the_last_changed_date =last_changed_

meet the current conditionsSET @myDoc. Modify ('Insertif (count (/root/location/step) Then element step {"This is new step"}Else ()As first into (/root/location) [1] ')SELECT @myDoc;2. Update XML DECLARE @myDoc XML SET @myDoc = ' Laborhours= "1.1" Machinehours= ". 2" >manufacturing steps is described here. SELECT @myDoc; --The value of the LaborHours property in the replacement node location is SET @myDoc. Modify (' Replace value of (/roo

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 suincluded s

SQL server 2005 has been installed on one server, and everything is normal. Recently, due to the use of table type parameters, sqlserver 2008 needs to be installed, but cannot be connected after installation. The local machine can be connected through the machine name. Later I found that I needed to change the port. I don't know if this is the only way. I hope y

transaction in the first connection completes, because the update lock for the SQL connection considers that the update lock in the first transaction might modify the data, so it must be executed before the transaction execution is complete. The update lock becomes an exclusive lock at this time.2. If the

Overview:As a DBA, it is often necessary to update the official database with the SQL script provided by the developer, but a more reasonable development process, when the script is submitted to the DBA, there may already be hundreds of SQL files, and there is a sequence of execution, such as the company I am working on, more than 10 customers, one library per cu

Original: Memory Meditation: Multiple names related to the mysterious SQL Server memory consumer.Original source: https://blogs.msdn.microsoft.com/sqlmeditation/2013/01/01/ memory-meditation-the-mysterious-sql-server-memory-consumer-with-many-names/For

', ' SQL Server name '); ' User name '; ' Password ', database name. dbo. Table name) Select *from Local surface --Update the surface Update b Set B. Column a=a. Column A From OPENROWSET (' SQLOLEDB ', ' SQL Server name ')

Source: One reason SQL Server can update subscription data conflictsWhy are updatable subscriptions conflicting?Updatable subscriptions, when the upgrade adds a field, typically increases in the publisher's publication database, and after the table is added, the publication is automatically synchronized to the subscription database (replication schema change =tru