Updating multiple rows at a time in sql server
FROM Specifies that a table, view, or derived table source is used to provide the criteria for the update operation. If the object being updated is the same as the object in the FROM clause and there is only one reference to the object in the FROM clause, an object alias may or may not be specified.
Today I will show how how to update multiple rows at once in webforms application. Note Any call to OPENDATASOURCE, OPENQUERY, or OPENROWSET in the FROM clause is evaluated separately and independently from any call to these functions used as the target of the update, even if identical arguments are supplied to the two calls. Avoid using these hints in this context in new development work, and plan to modify applications that currently use them.In particular, filter or join conditions applied on the result of one of those calls have no effect on the results of the other. Table2; USE Adventure Works2012; GO IF OBJECT_ID ('dbo. All char and nchar columns are right-padded to the defined length.Here in our scenario, Gridview loads on editable mode and once modifications are done, user will click on update button for update modified data in the database. If you have mvc project, please visit how to update multiple rows at once in mvc application. Contact Bulk Update @XMLData xml AS Create table #temp Contact ( ID int not null, First Name varchar(50) not null, Last Name varchar(50) not null, Contact No varchar(50) not null ) Insert into #temp Contact (ID, First Name, Last Name, Contact No) Select contact.query('ID').value('.','int') as ID, contact.query('First Name').value('.','varchar(50)') as First Name, contact.query('Last Name').value('.','varchar(50)') as Last Name, contact.query('Contact No').value('.','varchar(50)') as Contact No From @XMLData.nodes('/contacts/contact') as xml Data(contact) Update Contacts Set First Name = b. I would appreciate the code (I'm thinking its an Update with a join or a case statement, I just cant seem to get it right, nor am I finding this anywhere on the web), but if you know of a link elsewhere on these forums that solves this problem, please let me know.
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Common table expressions can also be used with the SELECT, INSERT, DELETE, and CREATE VIEW statements.
For more information, see WITH common_table_expression (Transact-SQL). For information about table hints, see Table Hints (Transact-SQL).
I need to copy/place the data from one column into another column for every row in the table, where the data from the first column corresponds to row ID.
This way, for evey row in the table, there is corresponding data and no nulls in the second column.
TOP ( ) Specifies one or more table hints that are allowed for a target table. @ Note When referencing the Unicode character data types nchar, nvarchar, and ntext, 'expression' should be prefixed with the capital letter 'N'.