ingres_query

(PHP 4 >= 4.0.2, PHP 5 < 5.1.0, PECL ingres >= 1.0.0)

ingres_query — Send an SQL query to Ingres

说明

ingres_query ( resource $link , string $query [, array $params [, string $types ]] ) : mixed

ingres_query() sends the given query to the Ingres server.

The query becomes part of the currently open transaction. If there is no open transaction, ingres_query() opens a new transaction. To close the transaction, you can call either ingres_commit() to commit the changes made to the database or ingres_rollback() to cancel these changes. When the script ends, any open transaction is rolled back (by calling ingres_rollback()). You can also use ingres_autocommit() before opening a new transaction to have every SQL query immediately committed.

Note: Related Configurations

See also the ingres.describe, ingres.scrollable and ingres.utf8 directives in Runtime Configuration

参数

link

The connection link identifier.

query

A valid SQL query (see the Ingres SQL reference guide) in the Ingres documentation.

Data inside the query should be properly escaped.

The following types of SQL queries cannot be sent with this function:

close (see ingres_close())
commit (see ingres_commit())
connect (see ingres_connect())
disconnect (see ingres_close())
get dbevent
prepare to commit
rollback (see ingres_rollback())
savepoint
set autocommit (see ingres_autocommit())
all cursor-related queries are unsupported

params

An array of parameter values to be used with the query

types

A string containing a sequence of types for the parameter values passed. When ingres.describe is enabled, this parameter can be ignored as the driver automatically fetches the expected parameter types from the server.

Type code	Ingres type
a	BOOLEAN
b	BYTE
B	LONG BYTE/BLOB
c	CHAR
d	DATE/ANSIDATE/TIMESTAMP/TIME
f	FLOAT
i	INTEGER
L	LONG TEXT
m	MONEY
M	LONG NVARCHAR
n	NCHAR
N	NVARCHAR
t	TEXT
v	VARCHAR
V	LONG VARCHAR

返回值

ingres_query() returns a query result identifier on success else it returns FALSE. To see if an error occurred use ingres_errno(), ingres_error() or ingres_errsqlstate().

范例

Example #1 Send a simple select


<?php
$link = ingres_connect("demodb");

$result = ingres_query($link, "select * from user_profile");
while ($row = ingres_fetch_row($result)) {
    echo $row[1];
    echo $row[2];
}
?>

Example #2 Passing query parameters to ingres_query()


<?php
$link = ingres_connect("demodb");

$params[] = "Emma";
$query = "select * from user_profile where up_first = ?";
$result = ingres_query($link, $query, $params);
while ($row = ingres_fetch_row($result)) {
    echo $row[1];
    echo $row[2];
}
?>

Example #3 Inserting a BLOB with parameter types


<?php
$link = ingres_connect("demodb");

//Open a photo
$fh = fopen("photo.jpg","r");
$blob_data = stream_get_contents($fh);
fclose($fh);

//Prepare parameters
$params[] = $blob_data;
$params[] = 1201;

//Define parameter types
$param_types = "Bi";

$query = "update user_profile set up_image = ? where up_id = ?";
$result = ingres_query($link, $query , $params, $param_types);

if (ingres_errno())
{
    echo ingres_errno() . "-" . ingres_error() . "\n";
}

ingres_commit($link);

ingres_close($link);
?>

参见

ingres_unbuffered_query() - Send an unbuffered SQL query to Ingres
ingres_fetch_array() - Fetch a row of result into an array
ingres_fetch_assoc() - Fetch a row of result into an associative array
ingres_fetch_object() - Fetch a row of result into an object
ingres_fetch_row() - Fetch a row of result into an enumerated array
ingres_commit() - Commit a transaction
ingres_rollback() - Roll back a transaction
ingres_autocommit() - Switch autocommit on or off
ingres_set_environment() - Set environment features controlling output options
ingres_errno() - Get the last Ingres error number generated
ingres_error() - Get a meaningful error message for the last error generated

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官方地址：https://www.php.net/manual/en/function.ingres-query.php

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ingres_query

说明

参数

返回值

范例

参见

User Contributed Notes