column seggregation with Case, Sql Server

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--Sql Server 2014 Express Edition
--Batches are separated by 'go'

select @@version as 'sql server version'

Create Table Customer (Id int PRIMARY KEY Not Null, Name varchar(10));

insert into Customer Values(001,'Pooja')
insert into Customer Values(002,'Priya')
insert into Customer Values(003,'Seema')
insert into Customer Values(004,'John')
insert into Customer values(005,'Federick')

select * from Customer;

Create Table Transaction_table (Trans_id int Not Null,
                          Tran_Amt int Not Null,
                          Trans_Type varchar(10),
                          Id int FOREIGN KEY REFERENCES Customer(Id)
                          )
                          
insert into Transaction_table Values(00010,10000,'CR',001)
insert into Transaction_table Values(00011,20000,'CR',003)
insert into Transaction_table Values(00012,30000,'CR',002)
insert into Transaction_table Values(00013,40000,'DB',004)
insert into Transaction_table Values(00014,50000,'CR',005)

select * from Transaction_table;

SELECT C.ID,C.NAME,TRANS_ID,TRAN_AMT,TRANS_TYPE ,
  CASE WHEN Trans_Type='CR' THEN T.Tran_Amt END as CREDIT,
  CASE WHEN Trans_Type='DB' THEN T.Tran_Amt END as DEBIT	 
  FROM CUSTOMER C
  INNER JOIN TRANSACTION_TABLE T ON C.ID=T.ID

View schema
Execution time: 0,02 sec, rows selected: 16, rows affected: 10, absolute service time: 0,2 sec, absolute service time: 0,22 sec