Conf/Examples/DatabseExampleZeroOrOneRow

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Revision as of 09:34, 13 January 2012 by Visitatvishal (talk | contribs)
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part of AOL Database Configuration with PostgreSQL 

<html>
   <head><title>Testing of Database connection</title></head>
 <body>  
 A simple tcl script example of Database Configuration
 <% 
  set pool "postgres_pool"
  set sql "select * from users where user_id = 1"    
  set db [ns_db gethandle $pool]
  
  set rec [ns_db 0or1row $db $sql]
  ns_puts [ns_set array $rec]
  ns_db releasehandle $db
 %>
 </body>
 </html>

Note

This command(ns_db 0or1row) expects the SQL to be a select statement that returns exactly zero or one row. On zero rows, a null string is returned. On one row, a newly allocated ns_set is returned. An error is thrown if more then one row is returned.

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