SQL Server/T-SQL/Cursor/Fetch Data

Fetch next into cursor

 

DECLARE @TableName varchar(255)
DECLARE TableCursor CURSOR FOR
   SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
      WHERE TABLE_TYPE = "BASE TABLE"
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @TableName
WHILE @@FETCH_STATUS = 0
BEGIN
   PRINT @TableName
   FETCH NEXT FROM TableCursor INTO @TableName
END
CLOSE TableCursor
DEALLOCATE TableCursor
GO

FETCH value from a cursor

17> create table employee(
18>     ID          int,
19>     name        nvarchar (10),
20>     salary      int,
21>     start_date  datetime,
22>     city        nvarchar (10),
23>     region      char (1))
24> GO
1>
2> insert into employee (ID, name,    salary, start_date, city,       region)
3>               values (1,  "Jason", 40420,  "02/01/94", "New York", "W")
4> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (2,  "Robert",14420,  "01/02/95", "Vancouver","N")
3> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (3,  "Celia", 24020,  "12/03/96", "Toronto",  "W")
3> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (4,  "Linda", 40620,  "11/04/97", "New York", "N")
3> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (5,  "David", 80026,  "10/05/98", "Vancouver","W")
3> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (6,  "James", 70060,  "09/06/99", "Toronto",  "N")
3> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (7,  "Alison",90620,  "08/07/00", "New York", "W")
3> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (8,  "Chris", 26020,  "07/08/01", "Vancouver","N")
3> GO
1> insert into employee (ID, name,    salary, start_date, city,       region)
2>               values (9,  "Mary",  60020,  "06/09/02", "Toronto",  "W")
3> GO
1>
2> select * from employee
3> GO
ID          name       salary      start_date              city       region
----------- ---------- ----------- ----------------------- ---------- ------
          1 Jason            40420 1994-02-01 00:00:00.000 New York   W
          2 Robert           14420 1995-01-02 00:00:00.000 Vancouver  N
          3 Celia            24020 1996-12-03 00:00:00.000 Toronto    W
          4 Linda            40620 1997-11-04 00:00:00.000 New York   N
          5 David            80026 1998-10-05 00:00:00.000 Vancouver  W
          6 James            70060 1999-09-06 00:00:00.000 Toronto    N
          7 Alison           90620 2000-08-07 00:00:00.000 New York   W
          8 Chris            26020 2001-07-08 00:00:00.000 Vancouver  N
          9 Mary             60020 2002-06-09 00:00:00.000 Toronto    W
1>
2> DECLARE curEmployee INSENSITIVE CURSOR
3> FOR SELECT ID, Name FROM Employee
4> DECLARE @ID Int
5> DECLARE @Name VarChar(100)
6>
7> OPEN curEmployee
8> FETCH NEXT FROM curEmployee INTO @ID, @Name
9> WHILE @@Fetch_Status = 0
10>    BEGIN
11>       PRINT @Name
12>       FETCH NEXT FROM curEmployee INTO @ID, @Name
13>    END
14> CLOSE curEmployee
15>
16> DEALLOCATE curEmployee
17> GO
Jason
Robert
Celia
Linda
David
James
Alison
Chris
Mary
1>
2>
3> drop table employee
4> GO
1>