mysqlistmtfetch

mysqlistmtfetch is not a standard API name in MySQL. The term likely refers to mysql_stmt_fetch, a function in the MySQL C API used to retrieve rows from the result set of a prepared statement. This function works in conjunction with prepared statements created via mysql_stmt_prepare and executed with mysql_stmt_execute.

Overview and usage

mysql_stmt_fetch fetches the next row of data into buffers that have been bound to the statement using mysql_stmt_bind_result (or related binding routines). Each column in the result set is associated with a buffer described by a MYSQL_BIND structure, which specifies the buffer address, length, and a flag indicating if the column value is NULL. On each successful call, the bound buffers receive the values for the current row.

Return values and error handling

A successful fetch returns 0. If there are no more rows to fetch, mysql_stmt_fetch returns MYSQL_NO_DATA. If data in a column is too large for the bound buffer, it may return MYSQL_DATA_TRUNCATED. On error, it returns a non-zero value, and the caller can obtain more detail with mysql_stmt_errno or mysql_stmt_error.

Typical workflow

1. Prepare the statement with mysql_stmt_prepare.

2. Bind parameters (if any) with mysql_stmt_bind_param and execute with mysql_stmt_execute.

3. Bind result buffers with mysql_stmt_bind_result.

4. Repeatedly call mysql_stmt_fetch until MYSQL_NO_DATA is returned.

5. Finalize with mysql_stmt_close.

Notes

- NULL values are indicated via the is_null flag in the MYSQL_BIND structures.

- If the term “mysqlistmtfetch” appeared in documentation, it is likely a misspelling or variation of mysql_stmt_fetch; the correct function name is mysql_stmt_fetch.