collation_connection specifies the character set and collation used by the connection.
| Property | Description |
|---|---|
| Parameter type | String |
| Default value | utf8mb4_general_ci |
| Value range | * utf8mb4_general_ci * utf8mb4_bin * utf8mb4_unicode_ci * gbk_bin * gbk_chinese_ci * gb18030_bin * gb18030_chinese_ci * utf16_general_ci * utf16_bin * utf16_unicode_ci * binary |
| Effective scope | * GLOBAL * SESSION |
| Involved in serialization | Yes |
| Plan generation affected | Yes |
| Nullable | Yes |