adding examples from PDF

ZAGI.sql

@@ -130,3 +130,159 @@ DROP TABLE vendor;
 DROP TABLE region;
 DROP TABLE category;
 DROP TABLE customer;
+
+
+-- queries
+
+-- 1
+SELECT
+SELECT productid, productname, productprice, vendorid, categoryid
+FROM product;
+
+-- 1a
+
+SELECT * FROM product;
+
+-- 2
+
+SELECT productname, productid, vendorid, categoryid, productprice
+FROM product;
+
+-- 3
+
+SELECT productid,productprice
+FROM product;
+
+-- 3a
+
+SELECT productid, productprice, productprice * 1.1
+FROM product;
+
+-- 4
+
+SELECT productid, productname, vendorid, productprice
+FROM product;
+WHERE productprice > 100;
+
+-- 5
+
+SELECT productid, productname, vendorid, productprice
+FROM product;
+WHERE productprice <= 100 AND categoryid = 'FW';
+
+-- 6
+
+SELECT vendorid
+FROM product;
+
+-- 7
+
+SELECT DISTINCT vendorid
+FROM product;
+
+-- 8
+
+SELECT productid, productname, categoryid, productprice
+FROM product;
+WHERE categoryid = 'FW'
+ORDER BY productprice;
+
+-- 9
+
+SELECT productid, productname, categoryid, productprice
+FROM product;
+WHERE categoryid = 'FW'
+ORDER BY productprice DESC;
+
+-- 10
+
+SELECT productid, productname, categoryid, productprice
+FROM product;
+ORDER BY categoryid, price;
+
+-- 11
+
+SELECT *
+FROM product;
+WHERE productname LIKE '%Boot%';
+
+-- 12
+
+SELECT AVG(productprice)
+FROM product;
+
+-- 13
+
+SELECT COUNT(*)
+FROM product;
+
+-- 14
+
+SELECT COUNT(DISTINCT vendorid)
+FROM product;
+
+-- 15
+
+SELECT COUNT(*), AVG(productprice), MIN(productprice), MAX(productprice)
+FROM product
+WHERE categoryid = 'CP';
+
+-- 16
+
+SELECT vendorid, COUNT(*), AVG(productprice)
+FROM product
+GROUP BY vendorid;
+
+-- 17
+
+SELECT COUNT(*), AVG(productprice)
+FROM product
+GROUP BY vendorid;
+
+-- 18
+
+SELECT vendorid, COUNT(*)
+FROM product
+WHERE productprice >= 100
+GROUP BY vendorid;
+
+-- 19
+
+SELECT vendorid, categoryid, COUNT(*), AVG(productprice)
+FROM product
+GROUP BY vendorid, categoryid;
+
+-- 20
+
+SELECT productd, SUM(noofitems)
+FROM soldvia
+GROUP BY productid;
+
+-- 21
+
+SELECT productid, COUNT(tid)
+FROM soldvia
+GROUP BY productid;
+
+-- 22
+
+SELECT vendorid, categoryid, COUNT(*), AVG(productprice)
+FROM product
+GROUP BY vendorid, categoryid
+HAVING COUNT(*) > 1;
+
+-- 23
+
+SELECT vendorid, categoryid, COUNT(*), AVG(productprice)
+FROM product
+WHERE productprice >= 50
+GROUP BY vendorid, categoryid
+HAVING COUNT(*) > 1;
+
+
+
+
+
+
+
+-- doot