Php/docs/function.cubrid-prepare

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cubrid_prepare

(PECL CUBRID >= 8.3.0)

cubrid_preparePrepare a SQL statement for execution


说明

cubrid_prepare ( resource $conn_identifier , string $prepare_stmt [, int $option = 0 ] ) : resource

The cubrid_prepare() function is a sort of API which represents SQL statements compiled previously to a given connection handle. This pre-compiled SQL statement will be included in the cubrid_prepare().

Accordingly, you can use this statement effectively to execute several times repeatedly or to process long data. Only a single statement can be used and a parameter may put a question mark (?) to appropriate area in the SQL statement. Add a parameter when you bind a value in the VALUES clause of INSERT statement or in the WHERE clause. Note that it is allowed to bind a value to a MARK(?) by using the cubrid_bind() function only.


参数

conn_identifier
Connection identifier.
prepare_stmt
Prepare query.
option
OID return option CUBRID_INCLUDE_OID.


返回值

Request identifier, if process is successful;

false, if process is unsuccessful.


范例

Example #1 cubrid_prepare() example

<?php$conn = cubrid_connect("localhost", 33000, "demodb");$sql = <<<EODSELECT 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);?>

以上例程会输出:


There are 27 event that exits in 2004 olympic but not in 2000. For example:

Event_code      Event_name
----------------------------
20063           +91kg
20070           64kg

参见