Create view from the user defined function : Create View « View « PostgreSQL

Home
PostgreSQL
1.Aggregate Functions
2.Analytical Functions
3.Array
4.Constraints
5.Cursor
6.Data Type
7.Database
8.Date Timezone
9.Index
10.Inheritance
11.Insert Delete Update
12.Math Functions
13.Postgre SQL
14.Select Query
15.Sequence
16.Store Procedure Function
17.String Functions
18.Subquery
19.Table
20.Table Joins
21.Transaction
22.User Previliege
23.View
PostgreSQL » View » Create View 
Create view from the user defined function


postgres=#
postgres=# CREATE TABLE myTable (
postgres(#          id int,
postgres(#          sid int,
postgres(#          name text);
CREATE TABLE
postgres=#
postgres=#
postgres=# insert into myTable values(1,2,'a');
INSERT 0 1
postgres=# insert into myTable values(2,3,'b');
INSERT 0 1
postgres=#
postgres=# select from myTable;
 id | sid | name
----+-----+------
  |   | a
  |   | b
(rows)

postgres=#
postgres=#
postgres=#
postgres=# CREATE FUNCTION getData(intRETURNS SETOF myTable AS $$
postgres$#    SELECT FROM myTable WHERE id = $1;
postgres$# $$ LANGUAGE SQL;
CREATE FUNCTION
postgres=#
postgres=#
postgres=# CREATE VIEW vw_GetData AS SELECT FROM getData(1);
CREATE VIEW
postgres=#
postgres=# SELECT FROM vw_GetData;
 id | sid | name
----+-----+------
  |   | a
(row)

postgres=#
postgres=# drop function getData(intcascade;
NOTICE:  drop cascades to rule _RETURN on view vw_getdata
NOTICE:  drop cascades to view vw_getdata
DROP FUNCTION
postgres=# drop view vw_GetData cascade;
ERROR:  view "vw_getdata" does not exist
postgres=# drop table myTable cascade;
DROP TABLE
postgres=#
postgres=#
           
       
Related examples in the same category
1.Creating a view with a natural join statement
2.Creates a view of all publishers whose names begin with H
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.