If you want to return te number of rows without fetching all data it might by more efficient to use this code (correct me if I'm wrong):
$sql_query = 'SELECT COUNT(*) AS NUMBER_OF_ROWS FROM (' . $your_query . ')';
$stmt= oci_parse($conn, $sql_query);
oci_define_by_name($stmt, 'NUMBER_OF_ROWS', $number_of_rows);
oci_execute($stmt);
oci_fetch($stmt);
echo $number_of_rows;
oci_num_rows
(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
oci_num_rows — 返回语句执行后受影响的行数
说明
oci_num_rows(resource
$statement): int|false获取语句执行后受影响的行数。
参数
-
statement -
有效的 OCI 语句标识符。
返回值
返回 int 类型的受影响的行数， 或者在失败时返回 false。
示例
示例 #1 oci_num_rows() 示例
<?php
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "create table emp2 as select * from employees");
oci_execute($stid);
echo oci_num_rows($stid) . " rows inserted.<br />\n";
oci_free_statement($stid);
$stid = oci_parse($conn, "delete from emp2");
oci_execute($stid, OCI_DEFAULT);
echo oci_num_rows($stid) . " rows deleted.<br />\n";
oci_commit($conn);
oci_free_statement($stid);
$stid = oci_parse($conn, "drop table emp2");
oci_execute($stid);
oci_free_statement($stid);
oci_close($conn);
?>注释
注意:
本函数并不返回 SELECT 查询出来的行数！对于 SELECT 语句本函数将返回用 oci_fetch*() 函数从缓冲区获取的行数。
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User Contributed Notes 5 notes
pluueer at hotmail dot com ¶
13 years ago
Dawid Krysiak ¶
6 years ago
oci_num_rows() called after running i.e. TRUNCATE query, always returns 0.
raywachaga at gmail dot com ¶
5 years ago
<?php if ( oci_num_rows($result) == false ) ?>
You can use the snippet above to test out if a select statement returned any rows, it won't do a count but it comes in handy
justin at flakmag dot com ¶
23 years ago
It appears the easiest workaround if you want to get numrows without moving to the end of the result set is to use:
numrows = OCIFetchStatement(...);
OCIExecute(...);
So that the execute re-executes the query. It's horribly inefficient to query twice, but it works.
batti at digito dot com ¶
23 years ago
this function can be used with select statement, and also return affected number of rows.
But remember this, use this after fetch statement.
