DF_FILE_ALLOWED_STRUCTURE_CHANGES

See Also: Get_Attribute, Set_Attribute, DF_File_Restructure

What type of restructure is allowed on a table

Level

• Table

Supported by

• All Drivers, version 6.2.0.19 or higher.

Type

• Integer, temporary

Access

• Read, Write

Values

• ALL_TABLE_CHANGES_ALLOWED
• ONLY_TABLE_INT_FILE_CHANGES_ALLOWED
• NO_TABLE_CHANGES_ALLOWED

Remarks

Changing properties of a table may result in changes in the INT file only (client-side changes) or changes on the server (server-side changes). In some situations, it may be desirable to allow only client-side changes. In that case, this attribute can be set to ONLY_TABLE_INT_FILE_CHANGES_ALLOWED to protect against server-side changes.

Example

Set_Attribute DF_FILE_ALLOWED_STRUCTURE_CHANGES of hTable iField to ONLY_TABLE_INT_FILE_CHANGES_ALLOWED
Structure_Start hTable "MSSQLDRV"
Set_Attribute DF_FIELD_LENGTH of hTable iField to iNewLength
Structure_End hTable DF_STRUCTEND_OPT_NONE