MySQL Question

What is the most efficient and optimized method to save data in the database?



For example this?:

new gQuery[ 256?]; //at the beginning of the gamemode

//in a function=>

gQuery[ 0 ] = EOS;

mysql_format( handle, gQuery, sizeof gQuery, "INSERT INTO `logs` (`Player`, `IP`) VALUES ('%e', '%s')", getName( playerid ), getPlayerIp( playerid ) );

mysql_tquery( handle, gQuery, "", "" );

or this?:

new Query[ 90 ];

mysql_format( handle, Query, sizeof Query, "INSERT INTO `logs` (`Player`, `IP`) VALUES ('%e', '%s')", getName( playerid ), getPlayerIp( playerid ) );

mysql_tquery( handle, Query, "", "" );

What exactly does gQuery[0] = EOS; mean? What's the difference?