Sql updating a table

You will be given questions that you need to solve.After each exercise, we provide the solution so you can check your answer. This can also be used to change the column to NULL if the column has no default and is defined to allow null values.Compound assignment operator: = Add and assign -= Subtract and assign *= Multiply and assign /= Divide and assign %= Modulo and assign &= Bitwise AND and assign ^= Bitwise XOR and assign |= Bitwise OR and assign Returns updated data or expressions based on it as part of the UPDATE operation.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).This works by using UPDATE to iterate over the INNER JOIN.As such the ON functions as your WHERE clause and the INNER JOIN skips records that are not found in the JOINed table.

Vonki solution below works: UPDATE [Sales_Lead].[dbo].[Sales_Import] SET [Account Number] = Retrieve Account Number. As well as being standard SQL and thus more portable it also will raise an error in the event of there being multiple joined rows on the source side (and thus multiple possible different values to use in the update) rather than having the final result be undeterministic. Don't update a value with the same value, it generates extra logging and unnecessary overhead.

Account Number FROM Retrieve Account Number WHERE Sales_Import.leadid =Retrieve Account Number. Would you like to answer one of these unanswered questions instead?

Lead ID) WHERE Sales_Import.leadid = (SELECT Retrieve Account Number.

I created a view linking the table to the account/card database to return the Table ID and the related account number, and now I need to update those records where the ID matches with the Account Number.

This is the UPDATE [Sales_Lead].[dbo].[Sales_Import] SET [Account Number] = (SELECT Retrieve Account Number.

439

Leave a Reply