A brief introduction to PostgreSQL
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A brief introduction to PostgreSQL
![PostgreSQL ’s (short) INTRODUCTION Nguyen Vu Hung [email_address] 2010/05/05](https://image.slidesharecdn.com/postgresql-introduction-20100506-100506084523-phpapp02/85/A-brief-introduction-to-PostgreSQL-1-320.jpg)
![Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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A brief introduction to PostgreSQL
- 1. PostgreSQL ’s (short) INTRODUCTION Nguyen Vu Hung [email_address] 2010/05/05
- 11. PHP and PostgresSQL ?> $dbconn4 = pg_connect ( $conn_string ); $conn_string = "host=sheep port=5432 dbname=test user=test password=bar" ; $dbconn3 = pg_connect ( "host=sheep port=5432 dbname=test user=test password=foo" ); $dbconn2 = pg_connect ( "host=localhost port=5432 dbname=test" ); $dbconn = pg_connect ( "dbname=test" ); <?php
- 17. Functions and Cursors CREATE FUNCTION myfunc(refcursor, refcursor) RETURNS SETOF refcursor AS $$ BEGIN OPEN $1 FOR SELECT * FROM table_1; RETURN NEXT $1; OPEN $2 FOR SELECT * FROM table_2; RETURN NEXT $2; END; $$ LANGUAGE plpgsql; -- need to be in a transaction to use cursors. BEGIN; SELECT * FROM myfunc('a', 'b'); FETCH ALL FROM a; FETCH ALL FROM b; COMMIT;