| 8 | TIMESTAMP | 8 | A nullable timestamp type with the same usage as the primary column timestamp |
| 8 | TIMESTAMP | 8 | A nullable timestamp type with the same usage as the primary column timestamp |
| 9 | BINARY(*M*) | *M* | A nullable string type whose length is *M*, any exceeded chars will be automatically truncated. This type of string only supports ASCii encoded chars. |
| 9 | BINARY(*M*) | *M* | A nullable string type whose length is *M*, any exceeded chars will be automatically truncated, the maximum length of *M* is 65526, but as maximum row size is 64K bytes, the actual upper limit will generally less than 65526. This type of string only supports ASCii encoded chars. |
| 10 | NCHAR(*M*) | 4 * *M* | A nullable string type whose length is *M*, any exceeded chars will be truncated. The **`NCHAR`** type supports Unicode encoded chars. |
| 10 | NCHAR(*M*) | 4 * *M* | A nullable string type whose length is *M*, any exceeded chars will be truncated. The **`NCHAR`** type supports Unicode encoded chars. |
All the keywords in a SQL statement are case-insensitive, but strings values are case-sensitive and must be quoted by a pair of `'` or `"`. To quote a `'` or a `"` , you can use the escape character `\`.
All the keywords in a SQL statement are case-insensitive, but strings values are case-sensitive and must be quoted by a pair of `'` or `"`. To quote a `'` or a `"` , you can use the escape character `\`.
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@@ -86,7 +86,7 @@ All the keywords in a SQL statement are case-insensitive, but strings values are
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@@ -86,7 +86,7 @@ All the keywords in a SQL statement are case-insensitive, but strings values are
1) The first column must be a `timestamp`, and the system will set it as the primary key.
1) The first column must be a `timestamp`, and the system will set it as the primary key.
2) The record size is limited to 4096 bytes
2) The record size is limited to 64k bytes
3) For `binary` or `nchar` data types, the length must be specified. For example, binary(20) means a binary data type with 20 bytes.
3) For `binary` or `nchar` data types, the length must be specified. For example, binary(20) means a binary data type with 20 bytes.