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Start on Cloud

A unified distributed database ready for your transactional, analytical, and AI workloads.

DEPLOY YOUR WAY

OceanBase Cloud

The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

OceanBase seekdb

Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

Comprehensive knowledge hub for OceanBase.

Blog

Live Demos

Training & Certification

Documentation

Official technical guides, tutorials, API references, and manuals for all OceanBase products.

View All
PRODUCTS
OceanBase CloudOceanBase Database
ToolsConnectors and Middleware
QUICK START
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BEST PRACTICES

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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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  1. Documentation Center
  2. OceanBase Connector/C
iconOceanBase Connector/C
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  • V 2.0.0

OceanBase Connector/C

OceanBase Connector/C is an OBClient development component based on C/C++. OceanBase Connector/C supports C API libraries. OceanBase Connector/C allows C/C++ applications to access OceanBase distributed database clusters from the underlying layer. Then, the applications can perform operations such as database connection, data access, error processing, and prepared statement processing. Also known as LibobClient, OceanBase Connector/C allows an application to run as an independent server process to communicate with OBServer nodes by using network connections. A client application references the C API header file during compilation and can link to the C API library file.
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Install OceanBase Connector/C

Use OceanBase Connector/C

  1. 1
    Install OceanBase Connector/C

    You can use an RPM package to install OceanBase Connector/C.

    For more information, see "Installation guide".

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  1. 1
    Perform basic operations

    OceanBase Connector/C API provides basic data structures and functions to handle the interactions between the client and the server.

    For more information, see "Basic API operations".

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Dive Deep into OceanBase Connector/C

  • API Functions of OceanBase Connector/C

    Learn more about the API functions of OceanBase Connector/C

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