The basic syntax of the SELECT statement : Query Select « Query « SQL Server / T-SQL Tutorial

SELECT select_list
FROM table_source
[WHERE search_condition]
[ORDER BY order_by_list]

The four clauses of the SELECT statement

Clause    Description
SELECT    Describes the columns that will be included in the result set.
FROM      Names the table from which the query will retrieve the data.
WHERE     Specifies the conditions that must be met for a row to be included in the result set. This clause is optional.
ORDER BY  Specifies how the rows in the result set will be sorted. This clause is optional.




20>
21> create table Billings (
22>     BankerID           INTEGER,
23>     BillingNumber      INTEGER,
24>     BillingDate        datetime,
25>     BillingTotal       INTEGER,
26>     TermsID            INTEGER,
27>     BillingDueDate     datetime ,
28>     PaymentTotal       INTEGER,
29>     CreditTotal        INTEGER
30>
31> );
32> 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> SELECT * FROM Billings
3> GO
BankerID    BillingNumber BillingDate             BillingTotal TermsID     BillingDueDate          PaymentTotal CreditTotal
----------- ------------- ----------------------- ------------ ----------- ----------------------- ------------ -----------
          1             1 2005-01-22 00:00:00.000          165           1 2005-04-22 00:00:00.000          123         321
          2             2 2001-02-21 00:00:00.000          165           1 2002-02-22 00:00:00.000          123         321
          3             3 2003-05-02 00:00:00.000          165           1 2005-04-12 00:00:00.000          123         321
          4             4 1999-03-12 00:00:00.000          165           1 2005-04-18 00:00:00.000          123         321
          5             5 2000-04-23 00:00:00.000          165           1 2005-04-17 00:00:00.000          123         321
          6             6 2001-06-14 00:00:00.000          165           1 2005-04-18 00:00:00.000          123         321
          7             7 2002-07-15 00:00:00.000          165           1 2005-04-19 00:00:00.000          123         321
          8             8 2003-08-16 00:00:00.000          165           1 2005-04-20 00:00:00.000          123         321
          9             9 2004-09-17 00:00:00.000          165           1 2005-04-21 00:00:00.000          123         321
          0             0 2005-10-18 00:00:00.000          165           1 2005-04-22 00:00:00.000          123         321

(10 rows affected)
1>
2> drop table Billings;
3> GO
1>
2>

1.1.Query Select
	1.1.1.	The basic syntax of the SELECT statement
	1.1.2.	The operators you can use in a search condition
	1.1.3.	Both uppercase and lowercase statements are acceptable, a query could be written as follows:
	1.1.4.	Operator Precedence
	1.1.5.	asterisk (*) specifies all columns of the named tables in the FROM clause
	1.1.6.	A SELECT statement that retrieves rows with non-zero values
	1.1.7.	A SELECT statement that retrieves two columns and a calculated value for a specific Billing
	1.1.8.	retrieve specific columns
	1.1.9.	A SELECT statement that retrieves three columns from each row, sorted in descending sequence by Billing total
	1.1.10.	A SELECT statement that returns an empty result set
	1.1.11.	SELECT 1.0 + 3.0 / 4.0 -- Returns 1.75
	1.1.12.	SELECT (1.0 + 3.0) / 4.0 -- Returns 1.00
	1.1.13.	The specification column_name [as] column_heading
	1.1.14.	Table alias
	1.1.15.	add a WHERE clause and group by
	1.1.16.	A SELECT statement that uses the CHAR function to format output
	1.1.17.	Use local variable in a select statement
	1.1.18.	Using SELECT to Create a Script