mirror of
https://github.com/mariadb-corporation/mariadb-connector-c.git
synced 2025-07-26 08:41:58 +00:00
37 lines
1.2 KiB
Groff
37 lines
1.2 KiB
Groff
.\" Automatically generated by Pandoc 3.5
|
|
.\"
|
|
.TH "mysql_field_count" "3" "" "Version 3.4" "MariaDB Connector/C"
|
|
.SS Name
|
|
mysql_field_count \- returns the number of columns for the most recent
|
|
statement
|
|
.SS Synopsis
|
|
.IP
|
|
.EX
|
|
#include \f[B]<mysql.h>\f[R]
|
|
|
|
unsigned int mysql_field_count(MYSQL * mysql);
|
|
.EE
|
|
.SS Description
|
|
Returns the number of columns for the most recent statement on the
|
|
connection represented by the link parameter as an unsigned integer.
|
|
This function can be useful when using the
|
|
\f[B]mysql_store_result(3)\f[R] function to determine if the query
|
|
should have produced a non\-empty result set or not without knowing the
|
|
nature of the query.
|
|
.SS Parameters
|
|
.IP \[bu] 2
|
|
\f[CR]mysql\f[R] is a connection identifier, which was previously
|
|
allocated by \f[B]mysql_init(3)\f[R] and connected by
|
|
\f[B]mysql_real_connect(3)\f[R].
|
|
.SS Notes
|
|
The \f[CR]mysql_field_count()\f[R] function should be used to determine
|
|
if there is a result set available.
|
|
.SS Return value:
|
|
The number of columns for the most recent statement.
|
|
The value is zero, if the statement didn\[cq]t produce a result set.
|
|
.SS See also
|
|
.IP \[bu] 2
|
|
\f[B]mysql_store_result(3)\f[R]
|
|
.IP \[bu] 2
|
|
\f[B]mysql_use_result(3)\f[R]
|