SQL Server/T-SQL/Transact SQL/Break

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BREAK exits the WHILE structure, resuming execution after the END statement

   <source lang="sql">

1> create table employee( 2> ID int, 3> name nvarchar (10), 4> salary int, 5> start_date datetime, 6> city nvarchar (10), 7> region char (1)) 8> 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 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (2, "Robert",14420, "01/02/95", "Vancouver","N") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (3, "Celia", 24020, "12/03/96", "Toronto", "W") 3> GO (1 rows affected) 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 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (5, "David", 80026, "10/05/98", "Vancouver","W") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (6, "James", 70060, "09/06/99", "Toronto", "N") 3> GO (1 rows affected) 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 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (8, "Chris", 26020, "07/08/01", "Vancouver","N") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (9, "Mary", 60020, "06/09/02", "Toronto", "W") 3> GO (1 rows affected) 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

(9 rows affected) 1> 2> -- BREAK exits the WHILE structure, resuming execution after the END statement. 3> 4> WHILE (SELECT AVG(Salary) FROM Employee) < $92000 5> BEGIN 6> UPDATE Employee SET Salary = Salary * 1.25 7> SELECT MAX(Salary) FROM Employee 8> IF (SELECT MAX(Salary) FROM Employee) > $10000 9> BEGIN 10> PRINT "is too high, quit." 11> BREAK 12> END 13> ELSE 14> BEGIN 15> PRINT "Continue to loop." 16> CONTINUE 17> END 18> END 19> PRINT "Done." 20> GO (9 rows affected)


    113275

(1 rows affected) is too high, quit. (1 rows affected) Done. 1> 2> drop table employee 3> GO 1>

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BREAK stops the execution of the statements inside the block

   <source lang="sql">

1> 2> CREATE TABLE project (project_no CHAR(4) NOT NULL, 3> project_name CHAR(15) NOT NULL, 4> budget FLOAT NULL) 5> 6> insert into project values ("p1", "Search Engine", 120000.00) 7> insert into project values ("p2", "Programming", 95000.00) 8> insert into project values ("p3", "SQL", 186500.00) 9> 10> select * from project 11> GO (1 rows affected) (1 rows affected) (1 rows affected) project_no project_name budget


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p1 Search Engine 120000 p2 Programming 95000 p3 SQL 186500 (3 rows affected) 1> 2> --BREAK stops the execution of the statements inside the block 3> 4> 5> WHILE (SELECT SUM(budget) FROM project) < 500000 6> BEGIN 7> UPDATE project SET budget = budget*1.1 8> IF (SELECT MAX(budget) FROM project) > 240000 9> BREAK 10> ELSE 11> CONTINUE 12> END 13> 14> select * from project 15> GO (3 rows affected) (3 rows affected) (3 rows affected) project_no project_name budget


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p1 Search Engine 159720 p2 Programming 126445.00000000004 p3 SQL 248231.50000000009 (3 rows affected) 1> 2> drop table project 3> GO 1> 2>

      </source>