SELECT * FROM crm_system_config ORDER BY id SELECT * FROM crm_system_config WHERE config_key = #{configKey} SELECT config_value FROM crm_system_config WHERE config_key = #{configKey} UPDATE crm_system_config SET config_value = #{configValue}, updated_at = NOW() WHERE config_key = #{configKey} UPDATE crm_system_config SET config_value = #{config.configValue}, updated_at = NOW() WHERE config_key = #{config.configKey}