View in Sql Server
- · View is a virtual table
- · It s contains columns and data in different table
- · View does not contain any data directly. Its a set of select query
| Table 1 Sno Sname | Table 2 Sno Lname |
| View_table1_table2 Sname Lname |
Above drawing table 1 and table we will write join query after we can create view
Syntax
CREATE VIEW JS_VIEW_NAME
AS
[SELECT STATEMENT]
Why we are use View ?
· View is used for security mechanism .if you restricted particular column for users .
Sql Server Syntex for View
CREATE VIEW
CREATE VIEW JS_VIEW
AS
SELECT *FROM STUD A,LIB L WHERE A.SNO=L.SON
ALTER VIEW
ALTER VIEW JS_VIEW
AS
SELECT *FROM STUDENTTABLE A,LIB L WHERE A.SNO=L.SON
SELECT VIEW
SELECT*FROM JS_VIEW
DROP VIEW:
DROP VIEW JS_VIEW
