答案 0 :(得分:1)
我认为JOIN会起作用,请在下面尝试:
SELECT A.ProductName
FROM ForgeRock AS A
JOIN ForgeRock1 AS B ON A.ProductName = B.ProductName;
答案 1 :(得分:0)
我认为ON缺失
SELECT count(*)
FROM ForgeRock A JOIN ForgeRock1 B
on A.ProductName = B.Productname