class ReplaceColumnValues {
 static class ReplaceColumnAndLongValues extends ExpressionDeParser {
 @Override
 public void visit(StringValue stringValue) {
 this.getBuffer().append("?");
 }
 @Override
 public void visit(LongValue longValue) {
 this.getBuffer().append("?");
 }
 }
 public static String cleanStatement(String sql) throws JSQLParserException {
 StringBuilder buffer = new StringBuilder();
 ExpressionDeParser expr = new ReplaceColumnAndLongValues();
 SelectDeParser selectDeparser = new SelectDeParser(expr, buffer);
 expr.setSelectVisitor(selectDeparser);
 expr.setBuffer(buffer);
 StatementDeParser stmtDeparser = new StatementDeParser(expr, selectDeparser, buffer);
 Statement stmt = CCJSqlParserUtil.parse(sql);
 stmt.accept(stmtDeparser);
 return stmtDeparser.getBuffer().toString();
 }
 public static void main(String[] args) throws JSQLParserException {
 System.out.println(cleanStatement("SELECT 'abc', 5 FROM mytable WHERE col='test'"));
 System.out.println(cleanStatement("UPDATE table1 A SET A.columna = 'XXX' WHERE A.cod_table = 'YYY'"));
 System.out.println(cleanStatement("INSERT INTO example (num, name, address, tel) VALUES (1, 'name', 'test ', '1234-1234')"));
 System.out.println(cleanStatement("DELETE FROM table1 where col=5 and col2=4"));
 }
}

SELECT 'abc', 5 FROM mytable WHERE col = 'test'
UPDATE table1 A SET A.columna = 'XXX' WHERE A.cod_table = 'YYY'
INSERT INTO example (num, name, address, tel) VALUES (1, 'name', 'test ', '1234-1234')
DELETE FROM table1 WHERE col = 5 AND col2 = 4