RE: [PHP-INST] PHP datatype vs Oracle Varchar2

From: Date: Fri, 27 Jul 2001 07:59:40 +0000
Subject: RE: [PHP-INST] PHP datatype vs Oracle Varchar2
Groups: php.install 
Request: Send a blank email to php-install+get-3723@lists.php.net to get a copy of this message
> Here is a description of the testcase for the problem: > > Oracle: > Create table Mytable ( > Username varchar2(20), > Passwd varchar2(20), > Usertype varchar2(50)) So, why are you using VARCHAR2 for this case? If you used the simple VARCHAR for all of your columns this problem would not occure?! > > Insert into Mytable (Username, Passwd, Usertype) > values(\'tester1\',\'tester1\',\'Operator\'); > > PHP: > $sql = \"select * from Mytable where Username=\'tester1\'\"; > $sql_statement = OCIParse($conn, $sql) or die (\"Couldn\'t parse statement\"); > OCIExecute($sql_statement) or die (\"Couldn\'t execute query\"); > > > Problem: > The string comaparison in the $sql (Username=\'tester1\') is never true, > because Username is a variable length string and \'tester1\' is considered as > a fixed length string. > > I don\'t have the flexibility to change VARCHAR2 to CHAR in order to make > this work, because a fixed length string will cause a lot of trouble for > string comparisons for other code in the program. > > Thanks for your help! > > Victoria > Benjamin

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