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CREATE TABLE tb ( NAME VARCHAR(50), TYPE VARCHAR(50), AMOUNT INT ); INSERT INTO tb VALUES ('Walter','BUY',2); INSERT INTO tb VALUES ('Walter','BUY',5); INSERT INTO tb VALUES ('Walter','SELL',3); INSERT INTO tb VALUES ('Walter','SELL',1); INSERT INTO tb VALUES ('Pollo','BUY',8); INSERT INTO tb VALUES ('Pollo','BUY',2); INSERT INTO tb VALUES ('Jessie','BUY',1); INSERT INTO tb VALUES ('Jessie','BUY',3); INSERT INTO tb VALUES ('Jessie','SELL',2); INSERT INTO tb VALUES ('Jessie','SELL',1);
SELECT name, SUM(CASE WHEN TYPE = 'buy' THEN AMOUNT ELSE 0 END) 'SUM(BUY)', SUM(CASE WHEN TYPE = 'Sell' THEN AMOUNT ELSE 0 END) 'SUM(Sell)' FROM tb WHERE TYPE IN ('buy','Sell') GROUP BY NAME;
name
SUM(BUY)
SUM(Sell)
Jessie
4
3
Pollo
10
0
Walter
7
4