corelibraries-devexpress-dot-dataaccess-dot-sql-dot-selectquery-dot-underscore-properties.md
A set of columns (from a single table or multiple joined tables) that forms a SELECT statement when executing a query.
| Name | Description |
|---|---|
| Columns | Provides access to all columns included in the query result set. |
| Distinct | Specifies whether or not a query result set should include duplicate values. |
| FilterString | Specifies the criteria used to filter data returned by the current SelectQuery. |
| GroupFilterString | Specifies the filter criteria to add to the current SelectQuery containing grouped/aggregated columns. |
| Groups | Provides access to all groups specified for the current query. |
| IsolationLevel | Specifies the isolation level for SqlQuery. Inherited from SqlQuery. |
| Name | Specifies the query name. Inherited from SqlQuery. |
| Parameters | Provides access to the collection of parameters defined for the SqlQuery. Inherited from SqlQuery. |
| Relations | Provides access to all data relations specified for the current query. |
| Skip | Specifies the number of rows to skip in a returned query result set. |
| Sorting | Provides access to all sorting criteria specified for the current query. |
| Tables | Provides access to all tables selected by the current query. |
| Top | Specifies the number of rows returned in the query result set. |
See Also