Relational Data Base RDB

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1 SQL

2 Relational Data Base RDB IBM Edger Frank Ted Codd A Relational Model of Data for Large Shared Data Banks (1970) IBM System R SEQUEL à SQL RDB RDBMS SQL Structured Query Language 1

3 IBM DB/2, Oracle, MS SQL/Server, MySQL, etc. SQL ODBC 2

4 Client DataBase Server SQL TCP/IP 3

5 WEB Client HTTP WEB SERVER (Application Server) SQL DataBase Server 4

6 ODBC ODBC : Open Data Base Connectivity Microsoft Windows Windows ODBC 5

7 ODBC ODBC Windows Vista 6

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16 E-R E-R 1975 Entity Relationship E-R Entity Attribute Relationship 15

17 ERD(E-R ) ID 16

18 IDEF 1970 ICAM(Integrated Computer Aided Manufacturing) IDEF = ICAM Definition 1990 NIPS FIPS NIPS National Institute of Standards and Technology FIPS Federal Information Processing Standards IDEF = Integration Definition IDEF1X IDEF0 : IDEF1X : IDEF1 IDEF1X ERD ERD 17

19 ERD IDEF1X ID ID 18

20 19

21 1NF ( 1 st Normal Form ) 2NF ( 2 nd Normal Form ) 3NF ( 3 rd Normal Form ) 20

22 NULL NULL NULL 21

23 SQL NDL DL/I DBMS 22

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28 SQL MySQL SQL

29 CREATE ALTER DROP INSERT SELECT DELETE UPDATE 28

30 TABLE CREATE TABLE VIEW CREATE VIEW 29

31 CREATE ALTER INSERT SELECT WHERE UPDATE DELETE COMMIT ROLLBACK 30

32 CREATE DATABASE CREATE DATABASE test; test SHOW DATABASES show databases; USE database USE test; test 31

33 CREATE TABEL create table members( id char(5), name char(50), tel char(13), mail char(50) ); ß member ß id char 5 ß id char 50 ß tel char 13 ß mail char 50 32

34 DESC DESC tablename; tablename show tables; show table status; 33

35 CHAR 255 VARCHAR 0 65,535 TEXT 65,535 INT FLOAT DOUBLE DATE TIME DATETIME YEAR 34

36 primary key NULL create table members( id char(5) primay key, name char(50), tel char(13), mail char(50) ); ß id 35

37 PRIMARY KEY NOT NULL UNIQUE NOT NULL UNIQUE DEFAULT create table members( id char(5) primary key, ß primary key name char(50) not null, ß NULL tel char(13) unique, mail char(50) ß ß ); 36

38 create table create table members( id char(5) primary key, pref char(2) not null refferrences Prefectures(pid) ); 37

39 index create table tablename (index indexname(fieldname)); create index indexname on tablename(fieldname); create index id_index on members(id); 38

40 SELECT create table tablename select * from origin; tablename origin origin origin 39

41 LIKE create table tablename LIKE origin; tablename origin origin 40

42 MySQL MySQL show variables like character% show character set; my.ini 41

43 cp932 create table members( id char(5) primary key, name char(50) not null, tel char(13) unique, mail char(50) ) CHARSET=cp932; ß CP932 42

44 MySQL MySQL InnoDB InnoDB InnoDB 43

45 MySQL MySQL (MySQL 5.6) InnoDB MyISAM MEMORY CSV ARCHIVE BLACKHOLE MERGE FEDERATED EXAMPLE 44

46 InnoDB create table members( id char(5) primary key, name char(50) not null, tel char(13) unique, mail char(50) ) ENGINE=InnoDB; ß InnoDB 45

47 alter table oldtable RENAME newtable; oldtable newtable 46

48 ALTER TABLE : change alter table tablename change org_field new_field pe; tablename org_field new_field type alter table members id mid char(5); 47

49 modify alter table tablename modify field type; tablename field type alter table members modify id char(10); 48

50 add alter table tablename add field type; tablename field type alter table members add dob date; 49

51 drop alter table tablename drop field ; tablename field alter table members drop dob; 50

52 DROP TABLE TABLENAME TABLENAME drop table members; 51

53 INSERT insert into tablename tablename value1,value2, values(value1,value2, ); inert into members values( 00001, HATOYAMA, , ); 52

54 insert into tablename (field1,field2) values(value1,value2); tablename field1,field2 value1,value2 inert into members(id,name) values( 00001, HATOYAMA ); 53

55 SELECT * FROM TABLENAME; TABLENAME SELECT * FROM MEMBERS; members 54

56 SELECT fieldname FROM TABLENAME; fieldname TABLENAME SELECT ID, NAME FROM MEMBERS; members ID NAME 55

57 SELECT * FROM TABLENAME WHERE ; fieldname TABLENAME WHERE SELECT * FROM MEMBERS WHERE ID= ; members ID

58 select field from table LIMIT number; LIMIT number select * from members LIMIT 10; members 10 57

59 select field from table WHERE ; WHERE select * from members where id= ; id

60 MySQL 59

61 % _ LIKE select * from table where field LIKE A% ; NOT LIKE select * from table where field NOT LIKE A% ; 60

62 AND select * from table where 1 AND 2; OR select * from table where 1 OR 2; 61

63 AS select * from table1 AS a where a.id= ; AS select field1 as a from table where a= ; 62

64 select select id, title, price*1.05 from price_mst; price * 1.05 price

65 select AVG COUNT MAX MIN SUM select AVE(price) from goods; 64

66 ORDER BY field select * from members ORDER BY name; ORDER BY field DESC select * from members ORDER BY name DESC; 65

67 select field from table where field IN (SELECT ); IN (SELECT ) SELECT select * from prices where code IN (SELECT code FROM goods WHERE price > 1000); 66

68 GROUP BY select * from table GROUP BY field; select * from employee GROUP BY DIV; 67

69 UNION select * from table1 union select * from table2; 68

70 JOIN JOIN ON select * from table1 JOIN table2 ON table1.code = table2.code; 69

71 UPDATE tablename SET field=value WHERE ; tablename field value update members set name= YUKIO where id= ; 70

72 UPDATE tablename SET field=value; tablename field value update members set name= YUKIO ; 71

73 delete from tablename where ; delete from tablename; 72

74 SQL START TRANSACTION BEGIN SET AUTOCOMMIT EX) SET AUTOCOMMIT=0; ß my.cnf» [mysqld]» init_connect= SET AUTOCOMMIT=0 73

75 SQL COMMIT; ROLLBACK; 74

76 MySQL v5.0 75

77 CREATE VIEW viewname AS SELECT fieldname FROM tablename WHERE ; viewname fieldname tablename create view v_mbr as select name,tel from members where age>=22; v_mbr name,tel members where age>=22 age 22 76

78 create view viewname as select table1.field1,table2.field2, from table1 viewname table1 field1 table2 field2 field where join table2 using(field) where ; field field2 77

79 create view v_sample as select member.id,member.name,log.last, from member join log using(id) where log.last >= ; member log member.id, name log.last id log.last >=

80 select * from v_mbr; select * from v_sample; SELECT MySQL v5.0 79

81 UPDATE INSERT 80

82 ALTER VIEW viewname AS SELECT field FROM table; viewname field table DROP VIEW viewname; viewname 81

83 CREATE PROCEDURE stored_procedure() BEGIN END stored_procedure() CREATE PROCEDURE stored_procedure(val type) val type 82

84 CALL stored_procedure; stored_procedure CALL stored_procedure(value); stored_procedure value 83

85 SHOW CREATE PROCEDURE stored_procedure; stored_procedure MySQL DELIMITER new_delimiter ; new_delimiter 84

86 CREATE FUNCTION stored_function() RETURNS type DETERMINISTIC BEGIN END 85

87 CREATE FUNCTION sample_func() RETURN INT DETERMINISTIC BEGIN DECLARE x INT; SELECT SUM(qty * price) INTO x FROM stock; RETURN x; END SELECT sample_func(); show CREATE FUNCTION stored_func; 86

88 CREATE TRIGGER triggername BEFORE/AFTER statement ON tablename FOR EACH ROW BEGIN END 87

89 Novice Class Seminar - Java Programmer directed co.,ltd.

Lecture 8. Database vs. Files SQL (I) Introduction to SQL database management systems (DBMS)

Lecture 8. Database vs. Files SQL (I) Introduction to SQL database management systems (DBMS) Lecture 8 SQL (I) Money are kept by boxes buried in the ground in the backyard. Money are kept in the bank 1 Source: system analysis and design methods, by Jeffrey L Whitten et al., 2 McGraw-Hill/Irwin,