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# Using TopLink Workbench

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To create TopLink expressions for named queries, use this procedure:

1. From the Named Queries Format tab, click Edit (or double-click a query string). The Expression Builder dialog box appears.

   See "Named Queries" for more information.

2. Click Add or Add Nested to create a new expression. TopLink assigns a sequence number to each node and nested node.

   Click Remove to remove an existing expression.

3. Select the node and use the Logical Operator list to specify the operator for the node (AND, OR, Not AND, or Not OR).

4. Choose the expression and complete the fields on the Expression Builder dialog.

Click OK. TopLink Workbench adds the expression to the Named Queries tab.