Nesting TRY...CATCH Calls : Try catch « Transact SQL « SQL Server / T-SQL Tutorial






4>
5> CREATE TABLE employee(
6>    id          INTEGER,
7>    first_name  VARCHAR(10),
8>    last_name   VARCHAR(10),
9>    salary      DECIMAL(10,2),
10>    start_Date  DATETIME,
11>    region      VARCHAR(10),
12>    city        VARCHAR(20),
13>    managerid   INTEGER
14> );
15> GO
1> INSERT INTO employee VALUES (1, 'Jason' ,  'Martin', 5890,'2005-03-22','North','Vancouver',3);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (2, 'Alison',  'Mathews',4789,'2003-07-21','South','Utown',4);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (3, 'James' ,  'Smith',  6678,'2001-12-01','North','Paris',5);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (4, 'Celia' ,  'Rice',   5567,'2006-03-03','South','London',6);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (5, 'Robert',  'Black',  4467,'2004-07-02','East','Newton',7);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (6, 'Linda' ,  'Green' , 6456,'2002-05-19','East','Calgary',8);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (7, 'David' ,  'Larry',  5345,'2008-03-18','West','New York',9);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (8, 'James' ,  'Cat',    4234,'2007-07-17','West','Regina',9);
2> GO

(1 rows affected)
1> INSERT INTO employee VALUES (9, 'Joan'  ,  'Act',    6123,'2001-04-16','North','Toronto',10);
2> GO

(1 rows affected)
1>
2> select * from employee;
3> GO
id          first_name last_name  salary       start_Date              region     city                 managerid
----------- ---------- ---------- ------------ ----------------------- ---------- -------------------- -----------
          1 Jason      Martin          5890.00 2005-03-22 00:00:00.000 North      Vancouver                      3
          2 Alison     Mathews         4789.00 2003-07-21 00:00:00.000 South      Utown                          4
          3 James      Smith           6678.00 2001-12-01 00:00:00.000 North      Paris                          5
          4 Celia      Rice            5567.00 2006-03-03 00:00:00.000 South      London                         6
          5 Robert     Black           4467.00 2004-07-02 00:00:00.000 East       Newton                         7
          6 Linda      Green           6456.00 2002-05-19 00:00:00.000 East       Calgary                        8
          7 David      Larry           5345.00 2008-03-18 00:00:00.000 West       New York                       9
          8 James      Cat             4234.00 2007-07-17 00:00:00.000 West       Regina                         9
          9 Joan       Act             6123.00 2001-04-16 00:00:00.000 North      Toronto                       10

(9 rows affected)
1>
2>
3> CREATE PROCEDURE dbo.usp_employee @Name nvarchar(50),@GroupName nvarchar(50)
4> AS
5> BEGIN TRY
6>     INSERT employee (first_Name, region)VALUES (@Name, @GroupName)
7> END TRY
8>     BEGIN CATCH
9>     BEGIN TRY
10>         PRINT 'The first department attempt failed.'
11>         INSERT employee(first_Name, region)VALUES ('Misc', @GroupName)
12>     END TRY
13>     BEGIN CATCH
14>         PRINT 'A Misc department for that group already exists.'
15>     END CATCH
16> END CATCH
17> GO
1>
2> EXEC dbo.usp_employee 'E', 'North'
3> GO

(1 rows affected)
1>
2> EXEC dbo.usp_employee 'G', 'South'
3> GO

(1 rows affected)
1>
2> drop table employee;
3> GO
1>








20.23.Try catch
20.23.1.Error Handling in SQL Server 2005
20.23.2.Error Handling with TRY...CATCH
20.23.3.try...catch Demo
20.23.4.Basic TRY/CATCH
20.23.5.Another TRY/CATCH
20.23.6.Nesting TRY...CATCH Calls
20.23.7.Applying TRY...CATCH Error Handling Without Recoding a Stored Procedure