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POUsing the Oracle database parser from Java using JDBC
 

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  1. POUsing the Oracle database parser from Java using JDBC
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    <p>I'm writing a tool in Java which submits statements to a database, which are later run. I'm using JDBC to connect to the database. The database is Oracle 10g.</p> <p>Before the statements are written to the database I want to parse them to check when they run later there will be no problems. I looked into using an ANTLR solution to this as there are grammars available, but surely If I have a connection to the database there must be a way to use the databases built in parser.</p> <p>So essentially my question is:</p> <p>Is there a way using JDBC I can make a call to the database parser passing it an SQL statement and it will return me some sort of feedback, telling me if it was successful or any error messages?</p> <p>Any help is greatly appreciated, Many thanks.</p> <p>Edit:</p> <p>Using connection.prepareStatement does not seem to work for instance this outputs parsed successfully! </p> <pre><code>String statement = "WHERE DISTINCT SELECT"; Connection connection; try { connection = this.controller.getDataSource().getConnection(); connection.prepareStatement(statement); connection.close(); mainPanel.setPositiveText("Parsed Successfully!"); } catch (Exception e) { mainPanel.setNegativeText("ERROR: " + e.getMessage()); return; } </code></pre> <p>The soultion I used is as follows:</p> <pre><code> String statement = "DECLARE " + "myNumber NUMBER; " + "BEGIN " + "myNumber := SYS.dbms_sql.open_cursor; " + "SYS.DBMS_SQL.PARSE(myNumber, '" + text + "', SYS.DBMS_SQL.NATIVE); " + "END;"; Connection connection; try { connection = this.controller.getDataSource().getConnection(); PreparedStatement preparedStatement = connection.prepareStatement(statement); preparedStatement.execute(); connection.close(); mainPanel.setPositiveText("Parsed Successfully!"); } catch (Exception e) { mainPanel.setNegativeText("ERROR: " + e.getMessage()); System.out.println(e.getMessage()); return; } </code></pre>
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    1. USJohn Walker
    1. USJohn Walker
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    1. COThe Statement execQuery or execUpdate methods will throw the exception.
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      1. USGilbert Le Blanc
 

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