rename DbTable.allParams => DbTable.columns
encapsulate DBEnvironment in DbObject
encapsulate DbParameterAccessor.javaType
extract dbfit-specific parts in SymbolAccessQueryBinding
reduce visibility of Update#buildUpdateCommand
small renaming in SymbolAccessQueryBinding
encapsulate PreparedStatement in DbObjectExecutionFixture
encapsulate PreparedStatement into StatementExecution
refactor AbstractDbEnvironment#createStatementWithBoundFixtureSymbols