Release 10.1A: OpenEdge Data Management:
DataServer for Microsoft SQL Server

> ## Modifying field-level information

> | To modify information in the schema holder at the field level:

> 1. Access the Data Dictionary, if not already showing, choose Fields. The following Fields list appears:

> 2. Select a table from the Tables list.

> 3. Select a field from the Fields list.

> 4. Choose the Field Properties button. The following dialog box appears:

> You can enter information at the field level, such as a validation expression or a validation message.

> The Data Dictionary displays the standard MS SQL Server names for data types and not the native ODBC data source names. Using the Data Dictionary, you can make the following changes:

> - Change the data type or the format in which OpenEdge displays the data. For example, choose the MS SQL Server `smallint` data type, which in turn maps to the OpenEdge `INTEGER` data type. However, you can change the `SMALLINT` mapping to the OpenEdge `DECIMAL` or `LOGICAL` data type instead. (See the "Data types" section for information on optional settings for data types.)
> - For `CHARACTER` fields that are not indexed, you can change the case sensitivity.
> Note: You cannot create fields or add mandatory or extent properties to them.

> 5. Choose DataServer to view the field name and position as stored in the data source. A dialog box similar to the following appears:

> Note: You cannot change data source information using the Data Dictionary. For example, the `cust–num` field is named `cust_num` in the demonstration database.

> 6. Choose OK.

> 7. When you are done making changes, choose OK to return to the Data Dictionary main window.

> Note: You can override field-level validation expressions in your application by including the appropriate Progress 4GL statement.

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