Using the Query Editor

The Query Editor is a tool in Interactive SQL that helps you build SELECT statements. You can create SQL queries in the Query Editor, or you can import queries and edit them. When you have finished your query, click OK to export it back into Sybase Central or Interactive SQL for processing.

 To create a query using the Query Editor

  1. Connect to a database from Interactive SQL.

  2. Open the Query Editor.

    From the Tools menu, choose Edit Query.

    If you have a SQL statement selected in Interactive SQL, the selected statement is automatically imported into the Query Editor.

  3. Create your query.

    At any time while using the Query Editor, you can click SQL at the bottom of the window to see the SQL statement for the query you are building. You can directly edit the code, and the fields are automatically updated in the Query Editor user interface.

  4. Click OK to write the query to the Interactive SQL SQL Statements pane.

You do not need to use SQL statements to create queries with the Query Editor. However, you can use SQL statements with the Query Editor in the following ways:

  • You can create a query in the SQL Statements pane in Interactive SQL, and import it into the Query Editor by highlighting the code before you open the editor.

  • At any time while using the Query Editor, you can click SQL at the bottom of the window to see the SQL statements for the query you are building. You can directly edit the code, and the fields are automatically updated in the Query Editor.

    You can configure the Query Editor from Interactive SQL or Sybase Central so that the SQL is fully formed, meaning that all table and column names fully qualified and names are quoted. This extra formatting is not normally necessary, but it ensures that the SQL works in all situations. You can also choose to get a list of tables on startup.

     To configure the Query Editor

    • From the Tools menu, choose Options » SQL Anywhere, and then click the Query Editor tab.

The Query Editor provides a series of tabs that guide you through the components of a SQL query, most of which are optional. The tabs are presented in the order that SQL queries are usually built:

Tab Description
Tables tab Use this tab to specify the tables in your query.
Joins tab Use this tab to specify a join strategy for combining the data in the tables. If you include more than one table in your query, you should specify a join strategy for combining the data in the tables. If you do not specify a join strategy for tables you added in the Tables tab, the Query Editor suggests one; if there is a foreign key relationship between the tables, it generates a join condition based on that relationship, or it suggests a cross product. When you open queries, the Query Editor accepts exactly the join strategy that you specified (and an unspecified JOIN is not defaulted to KEY JOIN, as it would be otherwise in SQL Anywhere).
Columns tab Use this tab to specify the columns in your result set. If you do not specify columns, all columns appear.
INTO tab Use this tab to assign results to variables.
WHERE tab Use this tab to specify conditions for restricting the rows in your result set.
GROUP BY tab Use this tab to group rows in the result set.
HAVING tab Use this tab to restrict the rows in your result set based on group values.
ORDER BY tab Use this tab to sort the rows.

The Query Editor also contains the following tools:

Window Description
Expression Editor Use the Expression Editor to build search conditions or define computed columns.
Derived Table Use this window, which is nearly identical to the main Query Editor, to create derived tables and subqueries.

Each component of the Query Editor has context-sensitive online help that describes how to use the tab, and provides links into the SQL Anywhere documentation that explain relevant concepts and usage.

 Query Editor limitations
 See also
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