Query Statement : Having a table "Acct_stat" with column "Trans_type"(Dr or Cr) , "Amount" Pls write a single query which should return sum of "Debit" , "Credit" and "Total Balance" of each account.
Answer : We can use a case statement as best choice for such queries like following with group by Account:
Let's go with following SQL
Drop table Acct_stat;
create table Acct_stat (Acount_No varchar2(10),TRANS_TYPE VARCHAR2(2),AMOUNT NUMBER);
insert into Acct_stat values('1' , 'DR' , 100);
insert into Acct_stat values('1' , 'CR' , 100);
insert into Acct_stat values('1' , 'DR' , 100);
insert into Acct_stat values('2' , 'CR' , 100);
insert into Acct_stat values('2' , 'CR' , 100);
insert into Acct_stat values('2' , 'DR' , 100);
insert into Acct_stat values('3' , 'DR' , 100);
insert into Acct_stat values('3' , 'CR' , 100);
SELECT Acount_No ,
SUM (CASE WHEN Trans_type = 'DR'
THEN AMOUNT ELSE null END) DB_SUM,
SUM (CASE WHEN Trans_type = 'CR'
THEN AMOUNT ELSE null END) CR_SUM,
SUM (AMOUNT) TOT_BAL
FROM ACCT_STAT GROUP BY (Acount_No);
and Result is :
Acount_No DB_SUM CR_SUM TOT_BAL
1 200 100 300
2 100 200 300
3 100 100 200
Cheers
Kapil
This blog is dedicated to share my experience during my development as a purpose of notes and explorer various web / enterprise technologies like JAVA , JEE , Spring ,hybris, Portal , Jquery , RAI , JMS, Weblogic , SSL , Security, CS, MAC< Linux, Windows, Search, IOT, Arduino, Machine Learning, Tips, Angular, Node JS, React, Mac, Windows, Stack, Exception, Error etc. with examples.
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