character_set_client

Description

character_set_client specifies the character set of the statements sent by the client.

Privilege requirements

• Query variables

  • Global level

    sys tenants and all user tenants can execute the SHOW VARIABLES statement or query the SYS.TENANT_VIRTUAL_GLOBAL_VARIABLE view (Oracle mode) or the information_schema.GLOBAL_VARIABLES view (MySQL mode) to view the value of global system variables.

  • Session level

    sys tenants and all user tenants can execute the SHOW VARIABLES statement or query the SYS.TENANT_VIRTUAL_SESSION_VARIABLE view (Oracle mode) or the information_schema.SESSION_VARIABLES view (MySQL mode) to view the value of session system variables.

• Modify variables

  • Global level

    • sys tenants can directly modify the value of global system variables.

    • MySQL user tenants must have the SUPER or ALTER SYSTEM privilege to modify the value of global system variables.

    • Oracle user tenants must have the ALTER SYSTEM privilege to modify the value of global system variables.

  • Session level

    sys tenants and all user tenants can directly modify the value of session system variables.

Attributes

Examples

Set the character set of the statements sent by the client to utf8mb4.

• Global level

  obclient> SET GLOBAL character_set_client ='utf8mb4';
  

• Session level

  obclient> SET character_set_client ='utf8mb4';