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Top Forums Programming [PHP] asking how to make plain text database searching system Post 302416969 by jim mcnamara on Wednesday 28th of April 2010 07:05:22 AM
Old 04-28-2010
A lot of unixes come with something like "db". db is an old text based database.
It does pretty much what a real database does, just using simple C routines.

The suggestion is: find something like that and then port it to php. Meanwhile look for another job where restrictions 'forbid to use xxx' do not exist. Unless this is homework.
 

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DROP 
DATABASE(7) PostgreSQL 9.2.7 Documentation DROP DATABASE(7) NAME
DROP_DATABASE - remove a database SYNOPSIS
DROP DATABASE [ IF EXISTS ] name DESCRIPTION
DROP DATABASE drops a database. It removes the catalog entries for the database and deletes the directory containing the data. It can only be executed by the database owner. Also, it cannot be executed while you or anyone else are connected to the target database. (Connect to postgres or any other database to issue this command.) DROP DATABASE cannot be undone. Use it with care! PARAMETERS
IF EXISTS Do not throw an error if the database does not exist. A notice is issued in this case. name The name of the database to remove. NOTES
DROP DATABASE cannot be executed inside a transaction block. This command cannot be executed while connected to the target database. Thus, it might be more convenient to use the program dropdb(1) instead, which is a wrapper around this command. COMPATIBILITY
There is no DROP DATABASE statement in the SQL standard. SEE ALSO
CREATE DATABASE (CREATE_DATABASE(7)) PostgreSQL 9.2.7 2014-02-17 DROP DATABASE(7)
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