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Full Discussion: Mysql CHAR vs VARCHAR
Special Forums UNIX and Linux Applications Mysql CHAR vs VARCHAR Post 302144137 by benefactr on Tuesday 6th of November 2007 11:11:53 AM
Old 11-06-2007
Mysql CHAR vs VARCHAR

Looking for any advise from a DBA/DA. When should you use CHAR and when should you use VARCHAR when designing a table. From my readings seems like VARCHAR will accept any length string even though you define a length to it, so I setup gadget VARCHAR(10) I could actually put something with 20 characters in there. Thanks for any advise on this. Bill
 

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CUBRID_COMMIT(3)							 1							  CUBRID_COMMIT(3)

cubrid_commit - Commit a transaction

SYNOPSIS
bool cubrid_commit (resource $conn_identifier) DESCRIPTION
The cubrid_commit(3) function is used to execute commit on the transaction pointed by $conn_identifier, currently in progress. Connection to the server is closed after the cubrid_commit(3) function is called; However, the connection handle is still valid. In CUBRID PHP, auto-commit mode is disabled by default for transaction management. You can set it by using cubrid_set_autocommit(3). You can get its status by using cubrid_get_autocommit(3). Before you start a transaction, remember to disable the auto-commit mode. PARAMETERS
o $conn_identifier -Connection identifier. RETURN VALUES
TRUE, when process is successful. FALSE, when process is unsuccessful. EXAMPLES
Example #1 cubrid_commit(3) example <?php $conn = cubrid_connect("localhost", 33000, "demodb", "dba"); @cubrid_execute($conn, "DROP TABLE publishers"); $sql = <<<EOD CREATE TABLE publishers( pub_id CHAR(3), pub_name VARCHAR(20), city VARCHAR(15), state CHAR(2), country VARCHAR(15) ) EOD; cubrid_set_autocommit($conn,false); if (!cubrid_execute($conn, $sql)) { printf("Error facility: %d Error code: %d Error msg: %s ", cubrid_error_code_facility(), cubrid_error_code(), cubrid_error_msg()); cubrid_disconnect($conn); exit; } $req = cubrid_prepare($conn, "INSERT INTO publishers VALUES(?, ?, ?, ?, ?)"); $id_list = array("P01", "P02", "P03", "P04"); $name_list = array("Abatis Publishers", "Core Dump Books", "Schadenfreude Press", "Tenterhooks Press"); $city_list = array("New York", "San Francisco", "Hamburg", "Berkeley"); $state_list = array("NY", "CA", NULL, "CA"); $country_list = array("USA", "USA", "Germany", "USA"); for ($i = 0, $size = count($id_list); $i < $size; $i++) { cubrid_bind($req, 1, $id_list[$i]); cubrid_bind($req, 2, $name_list[$i]); cubrid_bind($req, 3, $city_list[$i]); cubrid_bind($req, 4, $state_list[$i]); cubrid_bind($req, 5, $country_list[$i]); if (!($ret = cubrid_execute($req))) { break; } } if (!$ret) { cubrid_rollback($conn); } else { cubrid_commit($conn); $req = cubrid_execute($conn, "SELECT * FROM publishers"); while ($result = cubrid_fetch_assoc($req)) { printf("%-3s %-20s %-15s %-3s %-15s ", $result["pub_id"], $result["pub_name"], $result["city"], $result["state"], $result["country"]); } } cubrid_disconnect($conn); ?> The above example will output: P01 Abatis Publishers New York NY USA P02 Core Dump Books San Francisco CA USA P03 Schadenfreude Press Hamburg Germany P04 Tenterhooks Press Berkeley CA USA SEE ALSO
cubrid_rollback(3), cubrid_get_autocommit(3), cubrid_set_autocommit(3). PHP Documentation Group CUBRID_COMMIT(3)
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