Expression   This box is where you build your expression.

Columns   This box lists the columns that are in your query. To insert a column into your expression, double-click it here, or type it directly into the Expression pane.

Functions   Functions are predefined expressions used to return information about the database. To insert a function into your expression, choose it from the dropdown list. See SQL functions.

Stored Procedures   This box lists the stored procedures that you can use.

Numeric keypad   The numeric keypad is located in the bottom left section of the window. Click a number to insert it into the expression. You can also type numbers from your keyboard.

Comparison operators   These arithmetic symbols, such as =, appear in the middle of the bottom section of the window. Click a symbol to insert it into the expression. Only a subset of common operators are included here, but you can type others from your keyboard. See Comparison operators.

Logical operators   Logical operators, such as AND, appear in the right bottom section of the window. Click an operator to insert it into the expression. This group is a subset of commonly used logical operators. You can use any logical operator by typing it from your keyboard. See Logical operators.

Edit a subquery and insert the results into the editor button   This button is located with the logical operators. Click it to access a window that guides you in creating subqueries.