SQL连接查询3个表

Question

有人可以帮助我使用连接查询从3个不同的表中提取数据，这些表在每个表之间有共同的列。查询如下：

Query1 = Select * from abc.table1 -- The following are the columns: ID, CODE, DATE, SESSIONTIME.
Query2 = Select * from abc.table3 -- The following are the columns: CODE, Name, BATCH.
Query3 = Select * from abc.table2 -- The following are the columns: BATCH, TITLE

我希望显示加入查询：CODE，DATE，SESSIONTIME，BATCH，TITLE。 DBMS是Microsoft SQL Server

Answer 1

select t1.code, t1.date, t1.sessiontime, t2.batch, t3.title
from abc.table1 t1 (nolock) 
left outer join abc.table2 t2 (nolock) on t1.code=t2.code
left outer join abc.table3 t3 (nolock) on t2.batch=t3.batch