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98 lines
2.0 KiB
Groff
98 lines
2.0 KiB
Groff
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.\"t
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.\" Automatically generated by Pandoc 2.5
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.\"
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.TH "mysql_stmt_attr_get" "3" "" "Version 3.2.2" "MariaDB Connector/C"
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.hy
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.SS Name
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.PP
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mysql_stmt_attr_get \- Gets the current value of a statement attribute
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.SS Synopsis
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.IP
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.nf
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\f[C]
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#include <mysql.h>
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my_bool mysql_stmt_attr_get(MYSQL_STMT * stmt,
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enum enum_stmt_attr_type,
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void * attr);
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\f[R]
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.fi
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.SS Description
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.PP
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Gets the current value of a statement attribute.
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Returns zero on success, non zero on failure.
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.SS Parameter
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.IP \[bu] 2
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\f[C]stmt\f[R] \- a statement handle, which was previously allocated by
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\f[B]mysql_stmt_init(3)\f[R].
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.IP \[bu] 2
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\f[C]enum_stmt_attr_type\f[R] \- attribute.
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See below.
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.IP \[bu] 2
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\f[C]attr\f[R] \- pointer to a variable, which will contain the
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attribute value.
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.SS Attribute types
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.PP
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The \f[C]enum_stmt_attr_type\f[R] parameter has the following possible
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values:
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.PP
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.TS
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tab(@);
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lw(23.3n) lw(23.3n) lw(23.3n).
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T{
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Value
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T}@T{
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Type
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T}@T{
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Description
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T}
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_
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T{
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\f[C]STMT_ATTR_UPDATE_MAX_LENGTH\f[R]
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T}@T{
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\f[C]my_bool *\f[R]
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T}@T{
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Indicates if \f[B]mysql_stmt_store_result(3)\f[R] will update the
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max_length value of \f[C]MYSQL_FIELD\f[R] structures.
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T}
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T{
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\f[C]STMT_ATTR_CURSOR_TYPE\f[R]
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T}@T{
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\f[C]unsigned long *\f[R]
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T}@T{
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Possible values are \f[C]CURSOR_TYPE_READ_ONLY\f[R] or default value
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\f[C]CURSOR_TYPE_NO_CURSOR\f[R].
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T}
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T{
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\f[C]STMT_ATTR_PREFETCH_ROWS\f[R]
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T}@T{
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\f[C]unsigned long *\f[R]
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T}@T{
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Number of rows which will be prefetched.
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The default value is 1.
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T}
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T{
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\f[C]STMT_ATTR_PREBIND_PARAMS\f[R]
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T}@T{
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\f[C]unsigned int *\f[R]
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T}@T{
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Number of parameters used for \f[B]mariadb_stmt_execute_direct(3)\f[R]
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T}
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T{
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\f[C]STMT_ATTR_STATE\f[R]
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T}@T{
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\f[C]enum mysql_stmt_state *\f[R]
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T}@T{
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Status of prepared statement.
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Possible values are defined in \f[C]enum mysql_stmt_state\f[R].
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This option was added in MariaDB Connector/C 3.1.0
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T}
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.TE
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.SS Notes
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.IP \[bu] 2
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Setting the number of prefetched rows will work only for read only
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cursors.
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.SS See Also
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.IP \[bu] 2
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\f[B]mysql_stmt_attr_set(3)\f[R]
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