Available in versions: Dev (3.20) | Latest (3.19) | 3.18 | 3.17 | 3.16 | 3.15 | 3.14 | 3.13 | 3.12 | 3.11 | 3.10

Parsing Connection

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

As previously discussed in the manual's section about the SQL parser, jOOQ exposes a full-fledged SQL parser through DSLContext.parser(), and often more interestingly: Through DSLContext.parsingConnection().

A parsing connection is a JDBC java.sql.Connection, which proxies all commands through the jOOQ parser, transforming the inbound SQL statement (and bind variables) given the entirety of jOOQ's Configuration, including SQLDialect, Settings (e.g. formatting SQL or inlining bind variables) and much more. This allows for transparent SQL transformation of the SQL produced by any JDBC client (including JPA!). Here's a simple usage example:

// Configuration is configured with the target DataSource, SQLDialect, etc. for instance Oracle.
try (Connection c = DSL.using(configuration).parsingConnection();
     Statement s = c.createStatement();

     // This syntax is not supported in Oracle, but thanks to the parser and jOOQ,
     // it will run on Oracle and produce the expected result
     ResultSet rs = s.executeQuery("SELECT * FROM (VALUES (1, 'a'), (2, 'b')) t(x, y)")) {

    while (rs.next())
        System.out.println("x: " + rs.getInt(1) + ", y: " + rs.getString());

Running the above statement will yield:

x: 1, y: a
x: 2, y: b

References to this page


Do you have any feedback about this page? We'd love to hear it!

The jOOQ Logo