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DEPLOY YOUR WAY

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The best way to deploy and scale OceanBase

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Run and manage OceanBase on your infra

TRY OPEN SOURCE

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The free, open-source distributed database

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Open source AI native search database

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OceanBase Connector/C

V2.0.0

  • Overview
  • Installation guide
  • User Guide
    • Basic data structures
    • Basic operations
      • Basic API operations
      • API operations on prepared statements
  • C API functions
    • Overview
    • my_init()
    • mysql_affected_rows()
    • mysql_autocommit()
    • mysql_change_user()
    • mysql_character_set_name()
    • mysql_client_find_plugin()
    • mysql_client_register_plugin()
    • mysql_close()
    • mysql_commit()
    • mysql_connect()
    • mysql_create_db()
    • mysql_data_seek()
    • mysql_debug()
    • mysql_drop_db()
    • mysql_dump_debug_info()
    • mysql_eof()
    • mysql_errno()
    • mysql_error()
    • mysql_escape_string()
    • mysql_fetch_field()
    • mysql_fetch_field_direct()
    • mysql_fetch_fields()
    • mysql_fetch_lengths()
    • mysql_fetch_row()
    • mysql_field_count()
    • mysql_field_seek()
    • mysql_field_tell()
    • mysql_free_result()
    • mysql_get_character_set_info()
    • mysql_get_client_info()
    • mysql_get_client_version()
    • mysql_get_host_info()
    • mysql_get_proto_info()
    • mysql_get_server_info()
    • mysql_get_server_version()
    • mysql_get_ssl_cipher()
    • mysql_hex_string()
    • mysql_info()
    • mysql_init()
    • mysql_insert_id()
    • mysql_kill()
    • mysql_library_end()
    • mysql_library_init()
    • mysql_list_dbs()
    • mysql_list_fields()
    • mysql_list_processes()
    • mysql_list_tables()
    • mysql_load_plugin()
    • mysql_load_plugin_v()
    • mysql_more_results()
    • mysql_next_result()
    • mysql_num_fields()
    • mysql_num_rows()
    • mysql_options()
    • mysql_options4()
    • mysql_ping()
    • mysql_plugin_options()
    • mysql_query()
    • mysql_real_connect()
    • mysql_real_escape_string()
    • mysql_real_query()
    • mysql_refresh()
    • mysql_reload()
    • mysql_rollback()
    • mysql_row_seek()
    • mysql_row_tell()
    • mysql_select_db()
    • mysql_server_end()
    • mysql_server_init()
    • mysql_set_character_set()
    • mysql_set_local_infile_default()
    • mysql_set_local_infile_handler()
    • mysql_set_server_option()
    • mysql_shutdown()
    • mysql_sqlstate()
    • mysql_ssl_set()
    • mysql_stat()
    • mysql_stmt_affected_rows()
    • mysql_stmt_attr_get()
    • mysql_stmt_attr_set()
    • mysql_stmt_bind_param()
    • mysql_stmt_bind_result()
    • mysql_stmt_close()
    • mysql_stmt_data_seek()
    • mysql_stmt_errno()
    • mysql_stmt_error()
    • mysql_stmt_execute()
    • mysql_stmt_fetch()
    • mysql_stmt_fetch_column()
    • mysql_stmt_field_count()
    • mysql_stmt_free_result()
    • mysql_stmt_init()
    • mysql_stmt_insert_id()
    • mysql_stmt_next_result()
    • mysql_stmt_num_rows()
    • mysql_stmt_param_count()
    • mysql_stmt_param_metadata()
    • mysql_stmt_prepare()
    • mysql_stmt_reset()
    • mysql_stmt_result_metadata()
    • mysql_stmt_row_seek()
    • mysql_stmt_row_tell()
    • mysql_stmt_send_long_data()
    • mysql_stmt_sqlstate()
    • mysql_stmt_store_result()
    • mysql_store_result()
    • mysql_thread_end()
    • mysql_thread_id()
    • mysql_thread_init()
    • mysql_thread_safe()
    • mysql_use_result()
    • mysql_warning_count()

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Overview Installation guide Basic data structures Basic API operations API operations on prepared statements Overview my_init() mysql_affected_rows() mysql_autocommit() mysql_change_user() mysql_character_set_name() mysql_client_find_plugin() mysql_client_register_plugin() mysql_close() mysql_commit() mysql_connect() mysql_create_db() mysql_data_seek() mysql_debug() mysql_drop_db() mysql_dump_debug_info() mysql_eof() mysql_errno() mysql_error() mysql_escape_string() mysql_fetch_field() mysql_fetch_field_direct() mysql_fetch_fields() mysql_fetch_lengths() mysql_fetch_row() mysql_field_count() mysql_field_seek() mysql_field_tell() mysql_free_result() mysql_get_character_set_info() mysql_get_client_info() mysql_get_client_version() mysql_get_host_info() mysql_get_proto_info() mysql_get_server_info() mysql_get_server_version() mysql_get_ssl_cipher() mysql_hex_string() mysql_info() mysql_init() mysql_insert_id() mysql_kill() mysql_library_end() mysql_library_init() mysql_list_dbs() mysql_list_fields() mysql_list_processes() mysql_list_tables() mysql_load_plugin() mysql_load_plugin_v() mysql_more_results() mysql_next_result() mysql_num_fields() mysql_num_rows() mysql_options() mysql_options4() mysql_ping() mysql_plugin_options() mysql_query() mysql_real_connect() mysql_real_escape_string() mysql_real_query() mysql_refresh() mysql_reload() mysql_rollback() mysql_row_seek() mysql_row_tell() mysql_select_db() mysql_server_end() mysql_server_init() mysql_set_character_set() mysql_set_local_infile_default() mysql_set_local_infile_handler() mysql_set_server_option() mysql_shutdown() mysql_sqlstate() mysql_ssl_set() mysql_stat() mysql_stmt_affected_rows() mysql_stmt_attr_get() mysql_stmt_attr_set() mysql_stmt_bind_param() mysql_stmt_bind_result() mysql_stmt_close() mysql_stmt_data_seek() mysql_stmt_errno() mysql_stmt_error() mysql_stmt_execute() mysql_stmt_fetch() mysql_stmt_fetch_column() mysql_stmt_field_count() mysql_stmt_free_result() mysql_stmt_init() mysql_stmt_insert_id() mysql_stmt_next_result()
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  3. V2.0.0
iconOceanBase Connector/C
V 2.0.0
  • V 2.0.0

Overview

Last Updated:2026-04-10 03:06:40  Updated
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The following table summarizes all C API functions available in the current version of OceanBase Connector/C.

Function Description
my_init() Initializes global variables in OceanBase Database.
mysql_affected_rows() Returns the number of rows modified, deleted, or inserted by the last UPDATE, DELETE, or INSERT statement.
mysql_autocommit() Sets the autocommit mode.
mysql_change_user() Modifies the user and database on an open connection.
mysql_character_set_name() Returns the name of the default character set for the current connection.
mysql_client_find_plugin() Returns a pointer to a plug-in.
mysql_client_register_plugin() Registers a plug-in.
mysql_close() Closes the connection with the server.
mysql_commit() Commits a transaction.
mysql_connect() Connects to the server. This function is deprecated.
mysql_create_db() Creates a database. This function is deprecated.
mysql_data_seek() Searches for an arbitrary row in a result set.
mysql_debug() Uses a given string to perform a DBUG_PUSH operation.
mysql_drop_db() Drops a database. This function is deprecated.
mysql_dump_debug_info() Instructs the server to write debugging information to the error log.
mysql_eof() Checks whether the last row in a result set is already read. This function is deprecated.
mysql_errno() Returns the error code generated for the last called API function.
mysql_error() Returns the error message generated for the last called API function.
mysql_escape_string() Escapes special characters in a string so that it can be used in an SQL statement.
mysql_fetch_field() Returns the next field.
mysql_fetch_field_direct() Returns the field with the specified field number.
mysql_fetch_fields() Returns an array of all field structures.
mysql_fetch_lengths() Returns the lengths of the columns of the current row in a result set.
mysql_fetch_row() Retrieves the next row of a result set.
mysql_field_count() Returns the number of columns for the most recent query.
mysql_field_seek() Searches for columns of a row in a result set.
mysql_field_tell() Returns the position of the field used for the last call to the mysql_fetch_field() function.
mysql_free_result() Frees the memory allocated to a result set.
mysql_get_character_set_info() Returns the information about the default character set.
mysql_get_client_info() Returns a string that represents the OceanBase client library version.
mysql_get_client_version() Returns an integer that represents the OceanBase client library version.
mysql_get_host_info() Returns the connection information, including the server host name.
mysql_get_proto_info() Returns the protocol version used for the current connection.
mysql_get_server_info() Returns a string that represents the server version.
mysql_get_server_version() Returns an integer that represents the server version.
mysql_get_ssl_cipher() Returns the current SSL password.
mysql_hex_string() Creates a hexadecimal string.
mysql_info() Returns the information about the most recently executed statement.
mysql_init() Obtains or initializes a connection structure.
mysql_insert_id() Returns the ID generated by the previous statement for an AUTO_INCREMENT column.
mysql_kill() Kills a thread. This function is deprecated.
mysql_library_end() Finalizes the C API library.
mysql_library_init() Initializes the C API library.
mysql_list_dbs() Returns database names that match a regular expression.
mysql_list_fields() Returns field names that match a regular expression.
mysql_list_processes() Returns the thread list of the server.
mysql_list_tables() Returns table names that match a regular expression.
mysql_load_plugin() Loads a plug-in.
mysql_load_plugin_v() Loads a plug-in.
mysql_more_results() Checks whether more results exist.
mysql_next_result() Returns the next statement result.
mysql_num_fields() Returns the number of columns in a result set.
mysql_num_rows() Returns the number of rows in a result set.
mysql_options() Sets connection options.
mysql_options4() Sets connection options.
mysql_ping() Checks whether the connection to the server is working.
mysql_plugin_options() Sets plug-in options.
mysql_query() Executes an SQL statement.
mysql_real_connect() Connects to the server.
mysql_real_escape_string() Encodes special characters in a string of a statement.
mysql_real_query() Executes a statement.
mysql_refresh() Flushes or resets tables or caches.
mysql_reload() Reloads the grant tables. This function is deprecated.
mysql_rollback() Rolls back a transaction.
mysql_row_seek() Searches for an arbitrary row in a query result set.
mysql_row_tell() Returns the current position of the row cursor for a result set.
mysql_select_db() Selects a database.
mysql_server_end() Finalizes the C API library.
mysql_server_init() Initializes the C API library.
mysql_set_character_set() Sets the default character set for the current connection.
mysql_set_local_infile_default() Sets the LOAD DATA LOCAL callback functions to the default values.
mysql_set_local_infile_handler() Installs callbacks to be used during the execution of LOAD DATA LOCAL statements.
mysql_set_server_option() Enables or disables an option for the current connection.
mysql_shutdown() Shuts down the server.
mysql_sqlstate() Returns the SQLSTATE value of the most recently called function.
mysql_ssl_set() Establishes an SSL connection to the server.
mysql_stat() Returns the status of the server.
mysql_stmt_affected_rows() Returns the number of rows modified, deleted, or inserted by the last UPDATE, DELETE, or INSERT statement.
mysql_stmt_attr_get() Obtains an attribute value of a prepared statement.
mysql_stmt_attr_set() Sets an attribute value for a prepared statement.
mysql_stmt_bind_param() Associates the input data with the parameter markers of a prepared statement.
mysql_stmt_bind_result() Associates data buffers with output columns in the result set.
mysql_stmt_close() Closes a prepared statement.
mysql_stmt_data_seek() Searches for an arbitrary row in the result set of a prepared statement.
mysql_stmt_errno() Returns the error code for the most recently called statement.
mysql_stmt_error() Returns the error message generated for the last called statement API function.
mysql_stmt_execute() Executes a prepared statement.
mysql_stmt_fetch() Returns the next row in a result set and returns the values of all associated columns.
mysql_stmt_fetch_column() Fetches one column from the current result set row.
mysql_stmt_field_count() Returns the number of columns in the result set of the most recently executed prepared statement.
mysql_stmt_free_result() Free resources allocated to the statement handler.
mysql_stmt_init() Allocates and initializes memory to the STMT structure.
mysql_stmt_insert_id() Returns the ID generated by the previous prepared statement for an AUTO_INCREMENT column.
mysql_stmt_next_result() Returns the next result in the result set of a prepared statement.
mysql_stmt_num_rows() Returns the number of rows in the result set of a statement.
mysql_stmt_param_count() Returns the number of parameters in a prepared statement.
mysql_stmt_param_metadata() Returns parameter metadata as a result set.
mysql_stmt_prepare() Prepares a statement.
mysql_stmt_reset() Resets a statement buffer on the server.
mysql_stmt_result_metadata() Returns the metadata of a prepared statement as a result set.
mysql_stmt_row_seek() Searches for an arbitrary row in the result set of a prepared statement.
mysql_stmt_row_tell() Returns the current position of the row cursor for the result set of a prepared statement.
mysql_stmt_send_long_data() Sends data to the server in pieces.
mysql_stmt_sqlstate() Returns the SQLSTATE value for the most recently called statement API function.
mysql_stmt_store_result() Retrieves and stores a result set.
mysql_store_result() Retrieves and stores a result set.
mysql_thread_end() Finalizes the thread handler.
mysql_thread_id() Returns the current thread ID.
mysql_thread_init() Initializes the thread handler.
mysql_thread_safe() Indicates whether the client library is compiled as thread-safe.
mysql_use_result() Retrieves a result set row by row.
mysql_warning_count() Returns the number of alerts generated during the execution of the previous statement.

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