jdbc: Get the SQL Type Name from java.sql.Type code

Question

I have an array with Field Names and jdbc Type codes. (Those int codes that you can find in

http://download.oracle.com/javase/1.4.2/docs/api/constant-values.html#java.s

Answer 1

To specifically answer "Get the SQL Type Name from java.sql.Type code", if you are using a version of java that can do reflection, here is a small utility method that pretty much does the same thing:

public Map getAllJdbcTypeNames() {

    Map result = new HashMap();

    for (Field field : Types.class.getFields()) {
        result.put((Integer)field.get(null), field.getName());
    }

    return result;
}

Add import java.lang.reflect.Field; to your import declarations. Once you have that in place, simply use it as follows:

...
Map jdbcMappings = getAllJdbcTypeNames();

String typeName = jdbcMappings.get(-5); // now that will return BIGINT
...