в 13:46, 26 мая 2010

2010-05-26T13:46:16Z

Admin: 1 версия

2010-05-26T10:22:37Z

1 версия

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== Join tables in a procedure==



<source lang="sql">
3>
4>
5> CREATE TABLE authors(
6> au_id varchar(11),
7> au_lname varchar(40) NOT NULL,
8> au_fname varchar(20) NOT NULL,
9> phone char(12) NOT NULL DEFAULT ("UNKNOWN"),
10> address varchar(40) NULL,
11> city varchar(20) NULL,
12> state char(2) NULL,
13> zip char(5) NULL,
14> contract bit NOT NULL
15> )
16> GO
1> insert authors values("1", "Joe", "Abra", "111 111-1111", "6 St.", "Berkeley", "CA", "11111", 1)
2> insert authors values("2", "Jack", "Majo", "222 222-2222", "3 St.", "Oakland" , "CA", "22222", 1)
3> insert authors values("3", "Pink", "Cherry", "333 333-3333", "5 Ln.", "Vancouver", "BC", "33333", 1)
4> insert authors values("4", "Blue", "Albert", "444 444-4444", "7 Av.", "Vancouver", "BC", "44444", 1)
5> insert authors values("5", "Red", "Anne", "555 555-5555", "6 Av.", "Regina", "SK", "55555", 1)
6> insert authors values("6", "Black", "Michel", "666 666-6666", "3 Pl.", "Regina", "SK", "66666", 1)
7> insert authors values("7", "White", "Sylvia", "777 777-7777", "1 Pl.", "Rockville", "MD", "77777", 1)
8> insert authors values("8", "Yellow","Heather","888 888-8888", "3 Pu", "Vacaville", "CA", "88888", 0)
9> insert authors values("9", "Gold", "Dep", "999 999-9999", "5 Av.", "Oakland", "CA", "99999", 0)
10> insert authors values("10", "Siler", "Dean", "000 000-0000", "4 Av.", "Oakland", "CA", "00000", 1)
11> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2> CREATE TABLE titles(
3> title_id varchar(20),
4> title varchar(80) NOT NULL,
5> type char(12) NOT NULL,
6> pub_id char(4) NULL,
7> price money NULL,
8> advance money NULL,
9> royalty int NULL,
10> ytd_sales int NULL,
11> notes varchar(200) NULL,
12> pubdate datetime NOT NULL
13> )
14> GO
1>
2> insert titles values ("1", "Secrets", "popular_comp", "1389", $20.00, $8000.00, 10, 4095,"Note 1","06/12/94")
3> insert titles values ("2", "The", "business", "1389", $19.99, $5000.00, 10, 4095,"Note 2","06/12/91")
4> insert titles values ("3", "Emotional", "psychology", "0736", $7.99, $4000.00, 10, 3336,"Note 3","06/12/91")
5> insert titles values ("4", "Prolonged", "psychology", "0736", $19.99, $2000.00, 10, 4072,"Note 4","06/12/91")
6> insert titles values ("5", "With", "business", "1389", $11.95, $5000.00, 10, 3876,"Note 5","06/09/91")
7> insert titles values ("6", "Valley", "mod_cook", "0877", $19.99, $0.00, 12, 2032,"Note 6","06/09/91")
8> insert titles values ("7", "Any?", "trad_cook", "0877", $14.99, $8000.00, 10, 4095,"Note 7","06/12/91")
9> insert titles values ("8", "Fifty", "trad_cook", "0877", $11.95, $4000.00, 14, 1509,"Note 8","06/12/91")
10> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2> CREATE TABLE titleauthor(
3> au_id varchar(20),
4> title_id varchar(20),
5> au_ord tinyint NULL,
6> royaltyper int NULL
7> )
8> GO
1>
2> insert titleauthor values("1", "2", 1, 60)
3> insert titleauthor values("2", "3", 1, 100)
4> insert titleauthor values("3", "4", 1, 100)
5> insert titleauthor values("4", "5", 1, 100)
6> insert titleauthor values("5", "6", 1, 100)
7> insert titleauthor values("6", "7", 2, 40)
8> insert titleauthor values("7", "8", 1, 100)
9> insert titleauthor values("8", "9", 1, 100)
10> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2>
3> CREATE PROC prSelEarningAuthors
4> AS
5> SELECT t.title_id,
6> a.au_lname,
7> a.au_fname,
8> advance = t.advance * ta.royaltyper/100,
9> royalies = (t.royalty * t.ytd_sales * t.price/100 - t.advance) * ta.royaltyper/100
10> FROM authors a,
11> titleauthor ta,
12> titles t
13> WHERE ta.title_id = t.title_id
14> AND a.au_id = ta.au_id
15> AND (t.royalty * t.ytd_sales * t.price/100 - t.advance) * ta.royaltyper/100 > 0
16> ORDER BY t.title_id,
17> au_lname,
18> au_fname
19> GO
1>
2>
3> drop PROC prSelEarningAuthors;
4> GO
1>
2>
3> drop table authors;
4> drop table titleauthor;
5> drop table titles;
6> GO</source>

== Optimized procedure to select earning authors.==



<source lang="sql">
9>
10> CREATE TABLE authors(
11> au_id varchar(11),
12> au_lname varchar(40) NOT NULL,
13> au_fname varchar(20) NOT NULL,
14> phone char(12) NOT NULL DEFAULT ("UNKNOWN"),
15> address varchar(40) NULL,
16> city varchar(20) NULL,
17> state char(2) NULL,
18> zip char(5) NULL,
19> contract bit NOT NULL
20> )
21> GO
1> insert authors values("1", "Joe", "Abra", "111 111-1111", "6 St.", "Berkeley", "CA", "11111", 1)
2> insert authors values("2", "Jack", "Majo", "222 222-2222", "3 St.", "Oakland" , "CA", "22222", 1)
3> insert authors values("3", "Pink", "Cherry", "333 333-3333", "5 Ln.", "Vancouver", "BC", "33333", 1)
4> insert authors values("4", "Blue", "Albert", "444 444-4444", "7 Av.", "Vancouver", "BC", "44444", 1)
5> insert authors values("5", "Red", "Anne", "555 555-5555", "6 Av.", "Regina", "SK", "55555", 1)
6> insert authors values("6", "Black", "Michel", "666 666-6666", "3 Pl.", "Regina", "SK", "66666", 1)
7> insert authors values("7", "White", "Sylvia", "777 777-7777", "1 Pl.", "Rockville", "MD", "77777", 1)
8> insert authors values("8", "Yellow","Heather","888 888-8888", "3 Pu", "Vacaville", "CA", "88888", 0)
9> insert authors values("9", "Gold", "Dep", "999 999-9999", "5 Av.", "Oakland", "CA", "99999", 0)
10> insert authors values("10", "Siler", "Dean", "000 000-0000", "4 Av.", "Oakland", "CA", "00000", 1)
11> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2> CREATE TABLE titles(
3> title_id varchar(20),
4> title varchar(80) NOT NULL,
5> type char(12) NOT NULL,
6> pub_id char(4) NULL,
7> price money NULL,
8> advance money NULL,
9> royalty int NULL,
10> ytd_sales int NULL,
11> notes varchar(200) NULL,
12> pubdate datetime NOT NULL
13> )
14> GO
1>
2> insert titles values ("1", "Secrets", "popular_comp", "1389", $20.00, $8000.00, 10, 4095,"Note 1","06/12/94")
3> insert titles values ("2", "The", "business", "1389", $19.99, $5000.00, 10, 4095,"Note 2","06/12/91")
4> insert titles values ("3", "Emotional", "psychology", "0736", $7.99, $4000.00, 10, 3336,"Note 3","06/12/91")
5> insert titles values ("4", "Prolonged", "psychology", "0736", $19.99, $2000.00, 10, 4072,"Note 4","06/12/91")
6> insert titles values ("5", "With", "business", "1389", $11.95, $5000.00, 10, 3876,"Note 5","06/09/91")
7> insert titles values ("6", "Valley", "mod_cook", "0877", $19.99, $0.00, 12, 2032,"Note 6","06/09/91")
8> insert titles values ("7", "Any?", "trad_cook", "0877", $14.99, $8000.00, 10, 4095,"Note 7","06/12/91")
9> insert titles values ("8", "Fifty", "trad_cook", "0877", $11.95, $4000.00, 14, 1509,"Note 8","06/12/91")
10> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2> CREATE TABLE titleauthor(
3> au_id varchar(20),
4> title_id varchar(20),
5> au_ord tinyint NULL,
6> royaltyper int NULL
7> )
8> GO
1>
2> insert titleauthor values("1", "2", 1, 60)
3> insert titleauthor values("2", "3", 1, 100)
4> insert titleauthor values("3", "4", 1, 100)
5> insert titleauthor values("4", "5", 1, 100)
6> insert titleauthor values("5", "6", 1, 100)
7> insert titleauthor values("6", "7", 2, 40)
8> insert titleauthor values("7", "8", 1, 100)
9> insert titleauthor values("8", "9", 1, 100)
10> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2> CREATE PROC prSelEarningAuthors
3> AS
4> SELECT t.title_id, a.au_lname, a.au_fname,
5> advance = t.advance * ta.royaltyper/100,
6> royalies = (t.royalty * t.ytd_sales * t.price/100 - t.advance) *
7> ta.royaltyper/100
8> FROM authors a, titleauthor ta, titles t
9> WHERE ta.title_id = t.title_id
10> AND a.au_id = ta.au_id
11> AND (t.royalty * t.ytd_sales * t.price/100 - t.advance) * ta.royaltyper/100 > 0
12> ORDER BY t.title_id, au_lname, au_fname
13> GO
1>
2> drop PROC prSelEarningAuthors;
3> GO
1>
2> drop table authors;
3> drop table titleauthor;
4> drop table titles;
5> GO</source>

== remove data based upon criteria specified through arguments.==



<source lang="sql">
7>
8>
9> CREATE TABLE stores(
10> stor_id char(4) NOT NULL,
11> stor_name varchar(40) NULL,
12> stor_address varchar(40) NULL,
13> city varchar(20) NULL,
14> state char(2) NULL,
15> zip char(5) NULL
16> )
17> GO
1> insert stores values("1","B","567 Ave.","Tustin", "CA","92789")
2> insert stores values("2","N","577 St.", "Los Gatos","CA","96745")
3> insert stores values("3","T","679 St.", "Portland", "OR","89076")
4> insert stores values("4","F","89 St.", "Fremont", "CA","90019")
5> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2>
3> CREATE PROCEDURE prDeleteData @chvTable VARCHAR(30),
4> @chvWhereField VARCHAR(30) = NULL,
5> @chvWhereFieldDataType VARCHAR(30) = "CHAR",
6> @chvOperator VARCHAR(2) = "=",
7> @chvValue VARCHAR(30) = NULL
8> AS
9> DECLARE @chvSQL VARCHAR(255), @chvQuotes CHAR(1)
10> SELECT @chvSQL = "DELETE " + @chvTable
11> IF NOT @chvWhereField IS NULL
12> BEGIN
13> SELECT @chvSQL = @chvSQL + " WHERE " + @chvWhereField + " " + @chvOperator + " "
14> SELECT @chvWhereFieldDataType = LOWER(RTRIM(@chvWhereFieldDataType))
15> SELECT @chvQuotes = CASE @chvWhereFieldDataType
16> WHEN "char" THEN "y"
17> WHEN "datetime" THEN "y"
18> WHEN "datetimn" THEN "y"
19> WHEN "smalldatetime" THEN "y"
20> WHEN "text" THEN "y"
21> WHEN "varchar" THEN "y"
22> ELSE "n"
23> END
24> IF @chvQuotes = "y"
25> SELECT @chvSQL = @chvSQL + """" + @chvValue + """"
26> ELSE
27> SELECT @chvSQL = @chvSQL + @chvValue
28> END
29> EXEC (@chvSQL)
30> GO
1>
2>
3> EXEC prDeleteData @chvTable = "stores",
4> @chvWhereField = "stor_name",
5> @chvWhereFieldDataType = "CHAR",
6> @chvOperator = "=",
7> @chvValue = "News & Brews"
8> GO
(0 rows affected)
1>
2>
3> drop PROCEDURE prDeleteData;
4> GO
1>
2> drop table stores;
3> GO</source>

== Stored Procedure to Retrieve a Customer"s Most Recent Order==



<source lang="sql">
4> CREATE TABLE employee(
5> id INTEGER NOT NULL PRIMARY KEY,
6> first_name VARCHAR(10),
7> last_name VARCHAR(10),
8> salary DECIMAL(10,2),
9> start_Date DATETIME,
10> region VARCHAR(10),
11> city VARCHAR(20),
12> managerid INTEGER
13> );
14> GO
1>
2> INSERT INTO employee VALUES (1, "Jason" , "Martin", 5890,"2005-03-22","North","Vancouver",3);
3> GO
(1 rows affected)
1> INSERT INTO employee VALUES (2, "Alison", "Mathews",4789,"2003-07-21","South","Utown",4);
2> GO
(1 rows affected)
1> INSERT INTO employee VALUES (3, "James" , "Smith", 6678,"2001-12-01","North","Paris",5);
2> GO
(1 rows affected)
1> INSERT INTO employee VALUES (4, "Celia" , "Rice", 5567,"2006-03-03","South","London",6);
2> GO
(1 rows affected)
1> INSERT INTO employee VALUES (5, "Robert", "Black", 4467,"2004-07-02","East","Newton",7);
2> GO
(1 rows affected)
1> INSERT INTO employee VALUES (6, "Linda" , "Green" , 6456,"2002-05-19","East","Calgary",8);
2> GO
(1 rows affected)
1> INSERT INTO employee VALUES (7, "David" , "Larry", 5345,"2008-03-18","West","New York",9);
2> GO
(1 rows affected)
1> INSERT INTO employee VALUES (8, "James" , "Cat", 4234,"2007-07-17","West","Regina",9);
2> GO
(1 rows affected)
1> INSERT INTO employee VALUES (9, "Joan" , "Act", 6123,"2001-04-16","North","Toronto",10);
2> GO
(1 rows affected)
1>
2> select * from employee;
3> GO
id first_name last_name salary start_Date region city managerid
----------- ---------- ---------- ------------ ----------------------- ---------- -------------------- -----------
1 Jason Martin 5890.00 2005-03-22 00:00:00.000 North Vancouver 3
2 Alison Mathews 4789.00 2003-07-21 00:00:00.000 South Utown 4
3 James Smith 6678.00 2001-12-01 00:00:00.000 North Paris 5
4 Celia Rice 5567.00 2006-03-03 00:00:00.000 South London 6
5 Robert Black 4467.00 2004-07-02 00:00:00.000 East Newton 7
6 Linda Green 6456.00 2002-05-19 00:00:00.000 East Calgary 8
7 David Larry 5345.00 2008-03-18 00:00:00.000 West New York 9
8 James Cat 4234.00 2007-07-17 00:00:00.000 West Regina 9
9 Joan Act 6123.00 2001-04-16 00:00:00.000 North Toronto 10
(9 rows affected)
1>
2>
3>
4> CREATE PROC MyProc
5> (
6> @ID nchar (5)
7> )
8> AS
9> SELECT TOP 1
10> *
11> FROM
12> Employee
13> WHERE
14> ID = @ID
15> ORDER BY
16> Start_Date DESC
17> GO
1>
2>
3> exec MyProc "1"
4> GO
id first_name last_name salary start_Date region city managerid
----------- ---------- ---------- ------------ ----------------------- ---------- -------------------- -----------
1 Jason Martin 5890.00 2005-03-22 00:00:00.000 North Vancouver 3
(1 rows affected)
1>
2> drop procedure MyProc
3> GO
1>
2>
3> drop table employee;
4> GO</source>

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