Updating multiple rows at a time in sql server
Or what if the updating became a regular request and the company needed to have the functionality available in the application?
The process would be difficult to implement and would have a performance impact on the database.
Update a table from another table Update query Update rows in one table based on minimum date value from another table Optimize Update Query not valid?
I am trying to update multiple rows with different values, but don't need to match any specific ID.
I would upload the transaction IDs with the new date value in a temporary table, add a join between the transaction table and the temporary table, and update the transaction table with the new values from the temporary table.
Although it seemed relatively simple to update thousands of records with temporary tables, what if I had thousands of transactions that needed multiple field values updated?
Below is the basic syntax for the UPDATE statement: This is not the complete syntax of the update statement.
Is there a cleaner way to roll this up into one statement rather than two.If you're attempting to update a single distinct row with each statement, no, you can't do that within a single statement in SQL Server.You would need a separate UPDATE statement for each.Because transaction logs are not recorded for table-valued parameters, performance improves.Previously, when multiple values were involved, the insert statement was executed multiple times; now, I use a table-valued parameter—with numerous values—that’s treated as one value and requires only one insert statement.
In previous versions of SQL Server, if I needed to update numerous rows of data, I used a temporary table.