Tag Archives: spark sql table insert

How to insert a record with Spark SQL

INSERT INTO tables with VALUES option as achieved with other SQL variants is not supported in Spark SQL as of now. For single record inserts the below example provides two options:

--CREATE test table
CREATE TABLE TestSchema.InsertTest USING DELTA AS (SELECT 1 AS row_id, 'value1' AS field_1, 'value2' AS field_2)

--INSERT INTO test table
INSERT INTO TestSchema.InsertTest SELECT t.* FROM (SELECT 2, 'value3', 'value4') t;

--INSERT INTO test table while aliasing field names
INSERT INTO TestSchema.InsertTest SELECT t.* FROM (SELECT 3 AS row_id, 'value5' AS field_1, 'value6' AS field_2) t;

--Confirm insert
SELECT * FROM TestSchema.InsertTest