View Single Post
  #1  
Old 02-14-2009, 02:26 AM
Jaxel Jaxel is offline
 
Join Date: Sep 2005
Posts: 1,160
Благодарил(а): 0 раз(а)
Поблагодарили: 0 раз(а) в 0 сообщениях
Default How do you check unique existance?

Yeah... I know I'm asking a lot of questions today...

I have a function which inserts a new entry into a database... but certain fields in this table are defined as UNIQUE... If I input something that is not unique, I get the following error...

Code:
Database error in vBulletin 3.8.1:

Invalid SQL:
INSERT INTO rank_players (pName, pRegion, pTeam, pCount, pTotal, pAverage, pTopTotal, pTopAverage, pExt)
		VALUES ('Jaxel', '', '', '0', '0', '0', '0', '0', '');

MySQL Error   : Duplicate entry 'Jaxel' for key 2

How would I go about for checking for existance before I attempt to insert into the database? I know I can do an SQL query to check for existance, but that would start adding too many queries. Is it possible to do this check, without doing a query?
Reply With Quote
 
X vBulletin 3.8.12 by vBS Debug Information
  • Page Generation 0.01655 seconds
  • Memory Usage 1,761KB
  • Queries Executed 11 (?)
More Information
Template Usage:
  • (1)SHOWTHREAD_SHOWPOST
  • (1)ad_footer_end
  • (1)ad_footer_start
  • (1)ad_header_end
  • (1)ad_header_logo
  • (1)ad_navbar_below
  • (1)bbcode_code
  • (1)footer
  • (1)gobutton
  • (1)header
  • (1)headinclude
  • (6)option
  • (1)post_thanks_box
  • (1)post_thanks_button
  • (1)post_thanks_javascript
  • (1)post_thanks_navbar_search
  • (1)post_thanks_postbit_info
  • (1)postbit
  • (1)postbit_onlinestatus
  • (1)postbit_wrapper
  • (1)spacer_close
  • (1)spacer_open 

Phrase Groups Available:
  • global
  • postbit
  • reputationlevel
  • showthread
Included Files:
  • ./showpost.php
  • ./global.php
  • ./includes/init.php
  • ./includes/class_core.php
  • ./includes/config.php
  • ./includes/functions.php
  • ./includes/class_hook.php
  • ./includes/modsystem_functions.php
  • ./includes/functions_bigthree.php
  • ./includes/class_postbit.php
  • ./includes/class_bbcode.php
  • ./includes/functions_reputation.php
  • ./includes/functions_post_thanks.php 

Hooks Called:
  • init_startup
  • init_startup_session_setup_start
  • init_startup_session_setup_complete
  • cache_permissions
  • fetch_postinfo_query
  • fetch_postinfo
  • fetch_threadinfo_query
  • fetch_threadinfo
  • fetch_foruminfo
  • style_fetch
  • cache_templates
  • global_start
  • parse_templates
  • global_setup_complete
  • showpost_start
  • bbcode_fetch_tags
  • bbcode_create
  • postbit_factory
  • showpost_post
  • postbit_display_start
  • post_thanks_function_post_thanks_off_start
  • post_thanks_function_post_thanks_off_end
  • post_thanks_function_fetch_thanks_start
  • post_thanks_function_fetch_thanks_end
  • post_thanks_function_thanked_already_start
  • post_thanks_function_thanked_already_end
  • fetch_musername
  • postbit_imicons
  • bbcode_parse_start
  • bbcode_parse_complete_precache
  • bbcode_parse_complete
  • postbit_display_complete
  • post_thanks_function_can_thank_this_post_start
  • showpost_complete