Need to join the data, of different tables

Question

I have some data in 3 tables, Table 1 has all the names say, table1 has column Name with data as A,B,C,D,E. Table 2 has columns Name,Logins_T2,Entering_T2. Same way table2 has columns Name,Logins_T3,entering_T3. Now, I want to join these 3 tables, i want
all the names of table1 and the columns logins_T2,entering_T2,logins_T3,entering_T3.
How can I join them, i tried by using left join but it is not giving the correct result, can anyone help me do this

Answer 1

I think this is what you are trying to do. Please try this.CREATE TABLE Test1 (Name varchar(20), Col2 varchar(20))
CREATE TABLE Test2 (logins_T2 varchar(20), entering_T2 varchar(20))
CREATE TABLE Test3 (logins_T3 varchar(20), entering_T3 varchar(20))
INSERT INTO Test1(Name, Col2) VALUES('A', 'test1_A'), ('B', 'test1_B'), ('C', 'test1_C'), ('D', 'test1_D')
INSERT INTO Test2(logins_T2, entering_T2) VALUES('A', 'test2_A'), ('C', 'test2_C')
INSERT INTO Test3(logins_T3, entering_T3) VALUES('B', 'test3_B'), ('C', 'test3_C')
SELECT * FROM Test1 t1
LEFT OUTER JOIN Test2 t2 ON t1.Name = t2.logins_T2
LEFT OUTER JOIN Test3 t3 ON t1.Name = t3.logins_T3
Prakash Machiraju
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I am doing this way,
SELECT t1.name,t2.logins_T2,enteringS_T2,t3.Logins_T3,t3.entering_T3 FROM Test1 t1
LEFT OUTER JOIN Test2 t2 ON t1.Name = t2.Name
LEFT OUTER JOIN Test3 t3 ON t1.Name = t3.Name
Logins and enterings are the integers and Table 2 and 3 also has column 'Name'.