A SQL script that uses variables : Variable « Transact SQL « SQL Server / T-SQL Tutorial

1. SQL Server / T-SQL Tutorial
2. Transact SQL
3. Variable

5>
6>
7> create table Billings (
8>     BankerID           INTEGER,
9>     BillingNumber      INTEGER,
10>     BillingDate        datetime,
11>     BillingTotal       INTEGER,
12>     TermsID            INTEGER,
13>     BillingDueDate     datetime ,
14>     PaymentTotal       INTEGER,
15>     CreditTotal        INTEGER
16>
17> );
18> GO
1>
2> INSERT INTO Billings VALUES (1, 1, '2005-01-22', 165, 1,'2005-04-22',123,321);
3> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (2, 2, '2001-02-21', 165, 1,'2002-02-22',123,321.);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (3, 3, '2003-05-02', 165, 1,'2005-04-12',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (4, 4, '1999-03-12', 165, 1,'2005-04-18',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (5, 5, '2000-04-23', 165, 1,'2005-04-17',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (6, 6, '2001-06-14', 165, 1,'2005-04-18',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (7, 7, '2002-07-15', 165, 1,'2005-04-19',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (8, 8, '2003-08-16', 165, 1,'2005-04-20',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (9, 9, '2004-09-17', 165, 1,'2005-04-21',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (0, 0, '2005-10-18', 165, 1,'2005-04-22',123,321);
2> GO

(1 rows affected)
1>
2>
3> DECLARE @MaxBilling money, @MinBilling money
4> DECLARE @PercentDifference decimal(8,2)
5> DECLARE @BillingCount int, @BankerIDVar int
6>
7> SET @BankerIDVar = 95
8> SET @MaxBilling = (SELECT MAX(BillingTotal) FROM Billings
9>     WHERE BankerID = @BankerIDVar)
10> SELECT @MinBilling = MIN(BillingTotal), @BillingCount = COUNT(*)
11> FROM Billings
12> WHERE BankerID = @BankerIDVar
13> SET @PercentDifference = (@MaxBilling - @MinBilling) / @MinBilling * 100
14>
15> PRINT 'Maximum Billing is $' + CONVERT(varchar,@MaxBilling,1) + '.'
16> PRINT 'Minimum Billing is $' + CONVERT(varchar,@MinBilling,1) + '.'
17> PRINT 'Maximum is ' + CONVERT(varchar,@PercentDifference) +
18>     '% more than minimum.'
19> PRINT 'Number of Billings: ' + CONVERT(varchar,@BillingCount) + '.'
20>
21> GO



Number of Billings: 0.
1>
2> drop table Billings;
3> GO