Displaying the Oldest Active Transaction with DBCC OPENTRAN and Viewing Lock Activity : DBCC « System Settings « SQL Server / T-SQL Tutorial






4>
5> CREATE TABLE employee(
6>    id          INTEGER NOT NULL PRIMARY KEY,
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> BEGIN TRANSACTION
4> DELETE employee
5> WHERE ID = 3
6> ROLLBACK TRAN
7> GO

(1 rows affected)
1>
2> BEGIN TRAN
3> SELECT ID, first_name
4> FROM employee
5> WITH (TABLOCKX)
6>
7> SELECT request_session_id sessionid,
8> resource_type type,
9> resource_database_id dbid,
10> OBJECT_NAME(resource_associated_entity_id) objectname,
11> request_mode rmode,
12> request_status rstatus
13> FROM sys.dm_tran_locks
14> GO
ID          first_name
----------- ----------
          1 Jason
          2 Alison
          3 James
          4 Celia
          5 Robert
          6 Linda
          7 David
          8 James
          9 Joan

(9 rows affected)
sessionid   type                                                         dbid        objectname
                                                                                              rmode
                                   rstatus
----------- ------------------------------------------------------------ ----------- -----------------------------------
--------------------------------------------------------------------------------------------- --------------------------
---------------------------------- ------------------------------------------------------------
         51 OBJECT                                                                 1 NULL
                                                                                              X
                                   GRANT
         51 OBJECT                                                                 1 employee
                                                                                              X
                                   GRANT

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








26.4.DBCC
26.4.1.Using DBCC CHECKIDENT to View and Correct IDENTITY Seed Values
26.4.2.Clearing Out Memory
26.4.3.DBCC TRACEON
26.4.4.DBCC SHOW STATISTICS (tablename, index_name)
26.4.5.dynamically building the DBCC command:
26.4.6.Displaying the Oldest Active Transaction with DBCC OPENTRAN and Viewing Lock Activity
26.4.7.Syntax for Retrieving the Current IDENTITY Value of a Table and the Correct Value
26.4.8.Reseeding the IDENTITY Value
26.4.9.Syntax for Reseeding the IDENTITY Value with a New Explicit Value
26.4.10.Flushing the Procedure Cache