例: Avro出力の集約 - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - DATASETデータ型

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
2020年6月
Language
日本語
Last Update
2021-03-30
dita:mapPath
ja-JP/des1556232910526.ditamap
dita:ditavalPath
ja-JP/des1556232910526.ditaval
dita:id
B035-1198
Product Category
Software
Teradata Vantage

出力は、CSVデータにマッピングされるJSONオブジェクトで構成される1つのJSON配列に集約されます。

SELECT * FROM CSV_TO_JSON
(
	ON (SELECT csvFile FROM myCSVTable09 WHERE id=2)
	USING SCHEMA('{"record_delimiter":"#"}') DO_AGGREGATE('Y')
) AS csvJSON;

> [{"Item_ID":"55", "Item_Name":"bicycle", "Item_Color":"red", "Item_Style":"boys", "Quantity_Purchased":"1", "Item_Price":"100.00", "Total_Price":"100.00"}, {"Item_ID":"88", "Item_Name":"toy boat", "Item_Color":"pink", "Item_Style":null, "Quantity_Purchased":"1", "Item_Price":"15.10", "Total_Price":"15.10"}, {"Item_ID":"105", "Item_Name":"soap", "Item_Color":null, "Item_Style":null, "Quantity_Purchased":"1", "Item_Price":"0.99", "Total_Price":"0.99"}]