Performing anUPDATEusing a secondarySELECTstatementcan be accomplished in one of two ways, primarily depending upon which version of SQL Server you are using. 使用辅助语句来执行UPDATE,可以通过以下两种方法之一来完成,这主要取决于所使用的SQ
1 USING(SELECT * FROM AddressList) AS Addr After the USING statement, we have specified the source table. 1 ON Addr.PersonID=Per.PersonID With the help of this syntax, the join condition is defined between the target and source table. 1 2 WHEN MATCHED THEN UPDATE SET Per.PersonPo...
The syntax for the UPDATE statement when updating one table with data from another table in SQL Server (Transact-SQL) is: UPDATE table1 SET column1 = (SELECT expression1 FROM table2 WHERE conditions) [WHERE conditions]; OR The syntax for the SQL Server UPDATE statement when updating one tab...
SQL 复制 USE tempdb; GO -- UPDATE statement with CTE references that are correctly matched. DECLARE @x TABLE (ID INT, Value INT); DECLARE @y TABLE (ID INT, Value INT); INSERT @x VALUES (1, 10), (2, 20); INSERT @y VALUES (1, 100),(2, 200); WITH cte AS (SELECT * FRO...
What is an UPDATE Statement? When to Use an UPDATE Statement in SQL? Basic Methods of Using the UPDATE Statement in MySQL Method 1: Updating a Single Record in MySQL Method 2: Updating Multiple Rows in MySQL Method 3: Updating Multiple Columns in MySQL Method 4: Updating with Subquery in...
T-SQL: Update Values from Another Table UPDATEConsultantSETsalary=(SELECTsalaryFROMEmployeeWHEREEmployee.EmployeeID=Consultant.ConsultantID); Note: The subquery must return a sign column value; otherwise, an error will be raised. If the subquery could not find any matching row, then the value will...
#6) MySQL UPDATE Using INNER JOIN Keyword JOINis one of the most important keywords in the SQL statements. Usually, you might have used it in the SELECT statement. There are basically four types of JOIN statements: INNER JOIN:Fetches the records that are common in both tables. ...
SQL 复制 USE tempdb; GO -- UPDATE statement with CTE references that are correctly matched. DECLARE @x TABLE (ID INT, Value INT); DECLARE @y TABLE (ID INT, Value INT); INSERT @x VALUES (1, 10), (2, 20); INSERT @y VALUES (1, 100),(2, 200); WITH cte AS (SELECT * FRO...
SELECT statementTofindthe rows for the update, the other columns aren't relevant. SQL Server can...
Merge Statement usign Xml Data. Merge into Student as Trg Using (select d.x.value('Name[1]','varchar(20)') as Name , d.x.value('Marks[1]','int') as Marks from @data.nodes('/Root/Student')as d(x)) as Src on Trg.Name=Src.Name ...