单选题When a valid SQL Query in a DB Read step returns 0 rows, which branch of the step will be executed? ()ATimeout BSQL Error CSuccessful DConnection Not Available
单选题
When a valid SQL Query in a DB Read step returns 0 rows, which branch of the step will be executed? ()
A
Timeout
B
SQL Error
C
Successful
D
Connection Not Available
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单选题You define a multiple-row subquery in the WHERE clause of an SQL query with a comparison operator "=".What happens when the main query is executed?()AThe main query executes with the first value returned by the subquery.BThe main query executes with the last value returned by the subquery.CThe main query executes with all the values returned by the subquery.DThe main query fails because the multiple-row subquery cannot be used with the comparison operator.EYou cannot define a multiple-row subquery in the WHERE clause of a SQL query.
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