When was the operation in Field 103 executed? 
CREATE TABLE table_13150274_1 (years_of_operation VARCHAR, area_of_operation VARCHAR)
SELECT years_of_operation FROM table_13150274_1 WHERE area_of_operation = "Field 103"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_13150274_1 (years_of_operation VARCHAR, area_of_operation VARCHAR) Question: When was the operation in Field 103 executed?  [/INST] SELECT years_of_operation FROM table_13150274_1 WHERE area_of_operation = "Field 103" </s>