例: 再帰的問合わせの動的UDTの指定 - Teradata Database - Teradata Vantage NewSQL Engine - 例: 再帰的問合わせでの動的UDTの指定、WITH修飾子

Teradata Vantage™ SQLデータ操作言語

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
2019年3月
Language
日本語
Last Update
2019-10-29
dita:mapPath
ja-JP/fbo1512081269404.ditamap
dita:ditavalPath
ja-JP/fbo1512081269404.ditaval
dita:id
B035-1146
Product Category
Software
Teradata Vantage

次の例では、再帰的問合わせに動的UDTを使用する方法を示しています。

     WITH MyDerived(u_sal) AS (
       SELECT NEW MP_STRUCTURED_INT(salary, '1', '1') AS u_sal
       FROM employee)
     SELECT udf_aggr_avg_mp_struc(NEW VARIANT_TYPE(1 AS dummy,
                                                   u_sal AS x) )
     FROM MyDerived;
      *** Query completed. One row found. One column returned.
      *** Total elapsed time was 1 second.
     udf_aggr_avg_mp_struc(NEW VARIANT_TYPE (dummy, x))
     --------------------------------------------------
                                                  33438