cubrid_prepare
Prepare a SQL statement for execution
Description
resource cubrid_prepare(resource $conn_identifier, string $prepare_stmt, int $option = 0)
The cubrid_prepare function compiles a SQL statement for a given
connection handle and returns a handle that represents the pre-compiled statement.
A prepared statement can be executed several times, which is efficient for repeated
execution or for processing long data. Only a single statement can be used, and a
parameter can be marked with a question mark (?) at the appropriate
place in the SQL statement. Add a parameter when binding a value in the
VALUES clause of an INSERT statement or in the
WHERE clause. Note that a value can be bound to a parameter only by
using the cubrid_bind function.
Parameters
-
conn_identifier
-
Connection identifier.
-
prepare_stmt
-
Prepare query.
-
option
-
OID return option
CUBRID_INCLUDE_OID.
Return Values
Request identifier, if process is successful, or false on failure.
Examples
Example #1 cubrid_prepare example
<?php
$conn = cubrid_connect("localhost", 33000, "demodb");
$sql = <<<EOD
SELECT g.event_code, e.name
FROM game g
JOIN event e ON g.event_code=e.code
WHERE host_year = ? AND event_code NOT IN (SELECT event_code FROM game WHERE host_year=?) GROUP BY event_code;
EOD;
$req = cubrid_prepare($conn, $sql);
cubrid_bind($req, 1, 2004);
cubrid_bind($req, 2, 2000);
cubrid_execute($req);
$row_num = cubrid_num_rows($req);
printf("There are %d event that exits in 2004 olympic but not in 2000. For example:\n\n", $row_num);
printf("%-15s %s\n", "Event_code", "Event_name");
printf("----------------------------\n");
$row = cubrid_fetch_assoc($req);
printf("%-15d %s\n", $row["event_code"], $row["name"]);
$row = cubrid_fetch_assoc($req);
printf("%-15d %s\n", $row["event_code"], $row["name"]);
cubrid_disconnect($conn);
?>
The above example will output:
There are 27 event that exits in 2004 olympic but not in 2000. For example:
Event_code Event_name
----------------------------
20063 +91kg
20070 64kg
See Also
- cubrid_execute
- cubrid_bind