FETCH NEXT FROM : Fetch cursor « Cursor « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Cursor » Fetch cursor 
18. 4. 2. FETCH NEXT FROM
3>
4CREATE TABLE Employees(
5> empid   int         NOT NULL,
6> empname varchar(10NOT NULL,
7> deptno  int         NULL ,
8> jobid   int         ,
9> salary decimal(7,2NOT NULL
10)
11> GO
1>
2INSERT INTO Employees VALUES(1'Leo', 400303456.00)
3INSERT INTO Employees VALUES(2'Ros', 200204325.00)
4INSERT INTO Employees VALUES(3'Chris', 100108952.00)
5INSERT INTO Employees VALUES(4'Rob', 400301234.00)
6INSERT INTO Employees VALUES(5'Linda', 400304567.00)
7INSERT INTO Employees VALUES(6'Lisa', NULL, 308765.00)
8> GO

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)
1>     DECLARE
2>          @empname VARCHAR(40),
3>          @salary MONEY,
4>          @empid integer
5>     DECLARE getemp_curs CURSOR
6>         FOR
7>            SELECT empid, empname, salary FROM employees WHERE empid = 1
8>     OPEN getemp_curs
9>     FETCH NEXT FROM getemp_curs into @empid, @empname, @salary
10>     WHILE @@FETCH_STATUS = BEGIN
11>          UPDATE employees SET salary = @salary WHERE empid = @empid
12>     FETCH NEXT FROM getemp_curs into @empid, @empname, @salary
13>     END
14>     CLOSE getemp_curs
15>     DEALLOCATE getemp_curs
16>     GO

(rows affected)
1>
2> drop table Employees;
3> GO
18. 4. Fetch cursor
18. 4. 1. The syntax of the FETCH statement
18. 4. 2. FETCH NEXT FROM
18. 4. 3. Fetch cursor value with while loop
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