What are the equivalent methods to getColumnName and getColumnLabel in JDBC for DB2?

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The methods to get the column name and column label in JDBC for DB2 are:

1. For column name:

   String columnName = resultSet.getMetaData().getColumnName(columnIndex);

2. For column label:

   String columnLabel = resultSet.getMetaData().getColumnLabel(columnIndex);

Note that both getColumnName and getColumnLabel methods are supported in DB2 through JDBC.