Create a Composite Index : CREATE INDEX « Index « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Index » CREATE INDEX 
17. 1. 4. Create a Composite Index
4>
5CREATE 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
1INSERT INTO employee VALUES (1'Jason' ,  'Martin', 5890,'2005-03-22','North','Vancouver',3);
2> GO

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

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

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

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

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

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

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

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

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

(rows affected)
1>
2>
3>
4CREATE NONCLUSTERED INDEX NI_ID_FirstName
5> ON Employee(ID, First_Name)
6>
7>
8>
9> drop table employee;
10> GO
17. 1. CREATE INDEX
17. 1. 1. The basic syntax of the CREATE INDEX statement
17. 1. 2. Create an index for the column emp_no of the table employee.
17. 1. 3. Enforce Uniqueness on Non-Key Columns
17. 1. 4. Create a Composite Index
17. 1. 5. Define Index Column Sort Direction
17. 1. 6. Disable an Index
17. 1. 7. Change an Existing Index with DROP_EXISTING
17. 1. 8. Intermediate Index Creation in Tempdb
17. 1. 9. Control Parallel Plan Execution for Index Creation
17. 1. 10. Allow User Table Access During Index Creation
17. 1. 11. Using an Index INCLUDE
17. 1. 12. Use PAD_INDEX and FILLFACTOR
17. 1. 13. Disable page locks. Table and row locks can still be used.
17. 1. 14. Disable page and row locks. Only table locks can be used.
17. 1. 15. Allow page and row locks
17. 1. 16. Creating an Index on a Filegroup
17. 1. 17. Indexing a View
17. 1. 18. A statement that creates a nonclustered index based on two columns
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