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https://dev.mysql.com/doc/c-api/8.4/en/mysql-field-count.html
unsigned int mysql_field_count(MYSQL *mysql) Description Returns the number of columns for the most recent query on the connection. The normal use of this function is when mysql_store_result() returned NULL (and thus you have no result set pointer). In this case, you can call mysql_field_count() to determine whether mysql_store_result() should have produced a nonempty ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-free-result.html
void mysql_free_result(MYSQL_RES *result) Description Note mysql_free_result() is a synchronous function. Its asynchronous counterpart is mysql_free_result_nonblocking(), for use by applications that require asynchronous communication with the ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-get-client-info.html
const char * mysql_get_client_info(void) Description Returns a string that represents the MySQL client library version (for example, "8.4.6"). The function value is the version of MySQL that provides the client library. For more information, see ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-get-client-version.html
unsigned long mysql_get_client_version(void) Description Returns an integer that represents the MySQL client library version. The value has the format XXYYZZ, where XX is the major version, YY is the release level (or minor version), and ZZ is the ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-hex-string.html
unsigned long mysql_hex_string(char *to, const char *from, unsigned long length) Description This function creates a legal SQL string for use in an SQL statement. The string in the from argument is encoded in hexadecimal format, with each character ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-insert-id.html
uint64_t mysql_insert_id(MYSQL *mysql) Description Returns the value generated for an AUTO_INCREMENT column by the previous INSERT or UPDATE statement. Use this function after you have performed an INSERT statement into a table that contains an ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-library-end.html
void mysql_library_end(void) Description This function finalizes the MySQL client library. Call it when you are done using the library (for example, after disconnecting from the server). Note To avoid memory leaks after the application is done ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-library-init.html
int mysql_library_init(int argc, char **argv, char **groups) Description Call this function to initialize the MySQL client library before you call any other MySQL function. Note To avoid memory leaks after the application is done using the library ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-more-results.html
bool mysql_more_results(MYSQL *mysql) Description This function is used when you execute multiple statements specified as a single statement string, or when you execute CALL statements, which can return multiple result sets. mysql_more_results() ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-num-fields.html
unsigned int mysql_num_fields(MYSQL_RES *result) To pass a MYSQL* argument instead, use unsigned int mysql_field_count(MYSQL *mysql). You can get the number of columns either from a pointer to a result set or to a connection handler. You would use ...