Getting Startedwith pureQuery

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Getting Started with pureQuery
the Java editor when you choose pureQuery support for your project. You can use these
features for applications using the pureQuery APIs and for JPA, Hibernate or JDBC
applications. DB2 LUW, DB2 for z/OS, IDS, iSeries and Oracle databases are also
supported. For more details on these features and many more, refer to the article at
http://www.ibm.com/developerworks/data/library/techarticle/dm-0709surange/
3.3.1 SQL validation within the Java editor
Java developers often write applications that contain complex SQL and you as a Java
developer may not be an expert in writing the SQL queries you need. It is also sometimes
difficult to remember the exact table or column names. You must either refer to some
complex schema drawing or DDL, or you may mistype the column name in your SQL
statement. The Java editor reports SQL errors while you type SQL statements, and shows
them in the same way that Java language errors are shown. Figure 3.6 shows an example
SQL statement with a column name misspelled, missing the letter R. Errors in SQL
keywords (syntactic) and schema, table, column or other database names (semantic)
errors are detected.
Figure 3.6 - SQL errors are flagged while typing in the Java editor
3.3.2 SQL semantic and syntactic content assist for SQL inside Java editor
The Java editor provides SQL content-assits and validates syntax by using live database
connection settings. To get SQL content assist inside the Java editor, press (Ctrl +
Spacebar) the Crtl key and spacebar (or your default content assist keystroke) to popup
the content-assit window, as shown in Figure 3.7. The content-assist popup window helps
you:
• Discover and select SQL keywords
• Discover and select from the list of table and column names
• Use content-assist proposals to see database types and primary keys