JDBC Mixed Case Table and Column Names

Question

Is it possible in Java, using JDBC, to insert into a DB2 table (or any RDBMS) where the table names and columns are mixed case? For example, I want to execute SQL such as this:

insert into schemaname."TableName" ("ColumnName1", "ColumnName2") VALUES ('a', 'b')

So I try putting that into a format such as the following, substituting single quotes for the double quotes used for table and column names shown above:

Integer x = jdbcTemplate.update("insert into schemaname.'TableName' "
                        + "('ColumnName1', 'ColumnName2') VALUES (?,?)",
                        new Object[] { col1, col2});

However, this (and any other formatting I've tried) gives me sql errors that seem to take issue with my syntax (eg, DB2 SQL Error: SQLCODE=-204, SQLSTATE=42704). Any help is much appreciated!

Answer 1

Single quotes are for character literals (aka "strings"), not for identifiers. You need to use double quotes the same way you do in plain SQL. However inside a Java String, you need to escape the double quotes:

jdbcTemplate.update("insert into schemaname.\"TableName\" "
                    + "(\"ColumnName1\", \"ColumnName2\") VALUES (?,?)",
                    new Object[] { col1, col2});

This is one of the reasons why using quoted identifiers is usually not such a good idea.