Updating multiple columns in a table
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. Table1 (c1 int PRIMARY KEY NOT NULL, c2 int NOT NULL); GO CREATE TABLE dbo. Table2 WHERE CURRENT OF abc; GO SELECT c1, c2 FROM dbo.The OUTPUT clause is not supported in any DML statements that target remote tables or views. 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. Table2 (d1 int PRIMARY KEY NOT NULL, d2 int NOT NULL); GO INSERT INTO dbo. Table2 VALUES (1, 20), (2, 30); GO DECLARE abc CURSOR LOCAL FOR SELECT c1, c2 FROM dbo. Table1; GO Support for use of the READUNCOMMITTED and NOLOCK hints in the FROM clause that apply to the target table of an UPDATE or DELETE statement will be removed in a future version of SQL Server.The CTE result set is derived from a simple query and is referenced by UPDATE statement.Common table expressions can also be used with the SELECT, INSERT, DELETE, and CREATE VIEW statements. For information about table hints, see , 'expression' should be prefixed with the capital letter 'N'.If the object being updated appears more than one time in the FROM clause, one, and only one, reference to the object must not specify a table alias. Avoid using these hints in this context in new development work, and plan to modify applications that currently use them. Second, the SET clause specifies which column that you want to modify and the new values.For small numbers of rows requiring updates, it can be adequate to use an UPDATE statement for each row that requires an update.
You supply the value in each column’s assignment in the form of a literal value, an expression, or a subquery.
I'm new to SQL and I'm still trying to figure things out.
First of all, I'm not sure if I should be using an UPDATE statement or an INSERT INTO statement. Alias Link FROM Vote Centers Left Outer Join Polling Places on Polling Places.
Third, you specify which rows will be updated using a condition in the WHERE clause.
Hi Site Point members I have been perusing through the solutions for "updating multiple rows with one query", but I have a pressing question: How would one "SET" multiple column values with one query?
INSERT INTO Polling Places(PLACE, VCFull Addr, VCAddr, VCCity, VCZip, Phone, Alias Link) Select Vote Centers.