MySQL Workbench Release Notes
The following table shows the mapping between Microsoft SQL Server (source) data types and MySQL data types.
Table 10.2 Type mapping
| Source Type | MySQL Type | Comment |
|---|---|---|
| INT | INT | |
| TINYINT | TINYINT | UNSIGNED flag set in MySQL. |
| SMALLINT | SMALLINT | |
| BIGINT | BIGINT | |
| BIT | TINYINT(1) | |
| FLOAT | FLOAT | Precision value is used for storage size in both. |
| REAL | FLOAT | |
| NUMERIC | DECIMAL | |
| DECIMAL | DECIMAL | |
| MONEY | DECIMAL | |
| SMALLMONEY | DECIMAL | |
| CHAR | CHAR/LONGTEXT | Depending on its length. MySQL Server 5.6 and higher can have CHAR columns with a length up to 255 characters. Anything larger is migrated as LONGTEXT. |
| NCHAR | CHAR/LONGTEXT | Depending on its length. MySQL Server 5.6 and higher can have VARCHAR columns with a length up to 65535 characters. Anything larger is migrated to one of the TEXT blob types. In MySQL, a character set of strings depends on the column character set instead of the data type. |
| VARCHAR | VARCHAR/MEDIUMTEXT/LONGTEXT | Depending on its length. MySQL Server 5.6 and higher can have VARCHAR columns with a length up to 65535 characters. Anything larger is migrated to one of the TEXT blob types. |
| NVARCHAR | VARCHAR/MEDIUMTEXT/LONGTEXT | Depending on its length. MySQL Server 5.6 and higher can have VARCHAR columns with a length up to 65535 characters. Anything larger is migrated to one of the TEXT blob types. In MySQL, a character set of strings depends on the column character set instead of the data type. |
| DATE | DATE | |
| DATETIME | DATETIME | |
| DATETIME2 | DATETIME | Date range in MySQL is '1000-01-01 00:00:00.000000' to '9999-12-31 23:59:59.999999'. Note: fractional second values are only stored as of MySQL Server 5.6.4 and higher. |
| SMALLDATETIME | DATETIME | |
| DATETIMEOFFSET | DATETIME | |
| TIME | TIME | |
| TIMESTAMP | TIMESTAMP | |
| ROWVERSION | TIMESTAMP | |
| BINARY | BINARY/MEDIUMBLOB/LONGBLOB | Depending on its length. |
| VARBINARY | VARBINARY/MEDIUMBLOB/LONGBLOB | Depending on its length. |
| TEXT | VARCHAR/MEDIUMTEXT/LONGTEXT | Depending on its length. |
| NTEXT | VARCHAR/MEDIUMTEXT/LONGTEXT | Depending on its length. |
| IMAGE | TINYBLOB/MEDIUMBLOB/LONGBLOB | Depending on its length. |
| SQL_VARIANT | not migrated | There is not specific support for this data type. |
| TABLE | not migrated | There is not specific support for this data type. |
| HIERARCHYID | not migrated | There is not specific support for this data type. |
| UNIQUEIDENTIFIER | VARCHAR(64) | A unique flag set in MySQL. There is not specific support for inserting unique identifier values. |
| SYSNAME | VARCHAR(160) | |
| XML | TEXT |