postgresql-9.2

I am using "PostgreSQL 9.3.5" I have a Table ( StackOverflowTable ) with columns (SoId,SoName,SoDob) . I want a Sequence generator for column SoId which is a Alpha-numeric value. I want to auto increment a Alpha-Numeric Value in postgresql. For eg : SO10001, SO10002, SO10003.....SO99999. Edit: If tomorrow i need to generate a Sequence which can be as SO1000E100, SO1000E101,... and which has a good performance. Then what is the best solution! Use sequences and default value for id: postgres=# CREATE SEQUENCE xxx; CREATE SEQUENCE postgres=# SELECT setval('xxx', 10000); setval -------- 10000 (1

If i have a column say column a of any given values, and i want another column column b to have a default value according to the value of column a In another words: if column a = 'peter' then column b default value = 'doctor' . This is not possible with a simple DEFAULT value, as the manual clearly states : The value is any variable-free expression (subqueries and cross-references to other columns in the current table are not allowed). You could use a trigger instead: CREATE OR REPLACE FUNCTION trg_foo_b_default() RETURNS trigger AS $func$ BEGIN -- For just a few constant options, CASE does

CREATE TABLE app_for_leave ( sno integer NOT NULL, eid integer, ename varchar(20), sd date, ed date, sid integer, status boolean DEFAULT false, CONSTRAINT pk_snoa PRIMARY KEY (sno) ); Basic Insertion is :: INSERT INTO app_for_leave(sno, eid, sd, ed, sid, status) VALUES(1,101,'2013-04-04','2013-04-04',2,'f' ); ... INSERT INTO app_for_leave(sno, eid, sd, ed, sid, status) VALUES (?, ?, ?, ?, ?, ?); My Requirement:: How to insert data into a table using stored procedures ? PostgreSQL didn't support stored procedures until PG11. Prior to that, you could get the same result using a function. For

How to get list of all user defined functions via SQL query ? I find this code here SELECT p.proname, p.pronargs, t.typname FROM pg_proc p, pg_language l, pg_type t WHERE p.prolang = l.oid and p.prorettype = t.oid and l.lanname = 'c' ORDER BY proname; but this gets C-functions How to get user defined, procedural language functions, writen for example in plpgsql language? Craig Ringer Consider: select pp.proname, pl.lanname, pn.nspname, pg_get_functiondef(pp.oid) from pg_proc pp inner join pg_namespace pn on (pp.pronamespace = pn.oid) inner join pg_language pl on (pp.prolang = pl.oid) where pl