Example: Query a 2-D ARRAY Data Type and Table using ARRAY_UPDATE

Teradata Vantageā„¢ Data Types and Literals

brand
Software
Teradata Vantage
prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1143-162K

Consider the following 2-D ARRAY data type and table.

CREATE TYPE shot_ary AS INTEGER ARRAY[1:50][1:50];
CREATE TABLE seismic_data (
   id INTEGER,
   shot1 shot_ary,
   shot2 shot_ary);

The following query returns an updated copy of the shot1 array, with all the elements updated to the new value.

SELECT ARRAY_UPDATE(shot1, 0)
FROM seismic_data;

The following query returns an updated copy of the shot1 array, with a subset of the elements updated to the new value, as specified by the scope reference. The result is that the elements in the scope reference range [5:10][5:10] are updated to the new value. The rest of the elements in the array retain their original values.

SELECT ARRAY_UPDATE(shot1, 0, NEW arrayVec(5,5), NEW arrayVec(10,10))
FROM seismic_data;