1. 8 6
MySQL Special Topics
A Guide to MySQL

2. Objectives Import data into a MySQL table
Export data from a MySQL table
Understand issues that affect data performance
Analyze tables
A Guide to MySQL

3. Objectives (continued)
Optimize queries
Understand and use the MySQL Query Browser
Understand and use the MySQL Administrator
A Guide to MySQL

4. Importing and Exporting Data
Importing: converting data to a MySQL database
Exporting: converting the data in a MySQL database to a file format for use in another program
A Guide to MySQL

5. Importing Data into a Database
Text file:
Contains unformatted data
Comma-delimited
Tab-delimited
LOAD DATA INFILE:
Name of file to import
INTO TABLE (table)
A Guide to MySQL

6. Importing Data into a Database (continued)
A Guide to MySQL

7. Importing Data into a Database (continued)
A Guide to MySQL

8. Importing Data into a Database (continued)
A Guide to MySQL

9. Exporting Data from a Table
SELECT INTO OUTFILE:
SELECT (name of columns to export)
INTO OUTFILE (name of text file)
FROM (table)
Text file: can open in any word-processing program or text editor
A Guide to MySQL

10. Exporting Data from a Table (continued)
A Guide to MySQL

11. Database Performance Issues
Database performance: speed or rate with which the DBMS supplies information
Optimizer: built-in program or routine
A Guide to MySQL

12. Optimizing the Tables in a Database
Efficient table designs:
Smallest possible size for columns
Eliminate unnecessary columns
Eliminate unnecessary tables
ANALYZE TABLE command: creates statistics for optimizer
A Guide to MySQL

13. Optimizing the Tables in a Database (continued)
A Guide to MySQL

14. Optimizing the Tables in a Database (continued)
A Guide to MySQL

15. Optimizing the Tables in a Database (continued)
A Guide to MySQL

16. Optimizing the Queries in a Database
EXPLAIN command:
Evaluates performance before query is executed
Precedes normal SELECT statement
Use output to determine if indexes needed
A Guide to MySQL

17. Optimizing the Queries in a Database (continued)
A Guide to MySQL

18. Optimizing the Queries in a Database (continued)
PROCEDURE ANALYSE():
Analyzes query results
Suggests optimal data type
Place at the end of SELECT statement
A Guide to MySQL

19. Optimizing the Queries in a Database (continued)
A Guide to MySQL

20. Using the MySQL Query Browser
Separate program:
Create and execute queries using graphical user interface
Download from
A Guide to MySQL

21. Starting and Using the Query Browser
Depends on operating environment
Must enter:
Server host information
Username and password
Default database (schema)
A Guide to MySQL

22. Starting and Using the Query Browser (continued)
A Guide to MySQL

23. Query Browser Window Query Area Result Area
Object Browser: Schemata, Bookmarks, History
Information Browser: Syntax, Functions, Params, Trx
A Guide to MySQL

24. Starting and Using the Query Browser (continued)
A Guide to MySQL

25. Getting Help in the Query Browser
Help command on Help menu
Displays window with list of topics
Click topics to learn more
A Guide to MySQL

26. Using the Database Browser
Can set default database
Select tables and columns for query
Edit tables
A Guide to MySQL

27. Using the Database Browser (continued)
A Guide to MySQL

28. Using the Syntax Browser
Easy way to learn syntax
Four categories of commands:
Data Manipulation
Data Definition
MySQL Utility
Transactional and Locking
A Guide to MySQL

29. Using the Syntax Browser (continued)
A Guide to MySQL

30. Creating and Executing Queries
Type query in Query Area
Do not need semi-colon
Execute by:
Using Execute command on Query menu
Pressing Ctrl + Enter
Clicking Execute button on Query toolbar
Commands are identical to those in Command Line Client window
A Guide to MySQL

31. Creating and Executing Queries (continued)
A Guide to MySQL

32. Exporting a Resultset Four file formats:
CSV (comma-separated values)
HTML
XML
Microsoft Excel
Create and execute SELECT query
Use Export Resultset command on File menu
A Guide to MySQL

33. Using the Script Editor
Can create and edit scripts
Use Open Script command on File menu to open a script
Can debug and execute script
Use New Script Tab command on File menu to create a new script
A Guide to MySQL

34. Using the MySQL Table Editor
Can change the structure of tables
Can add foreign keys
Change name, data type, default value, or comment for a column
A Guide to MySQL

35. Using the MySQL Table Editor (continued)
A Guide to MySQL

36. Analyzing Query Performance
A Guide to MySQL

37. Using the MySQL Administrator
Tool for performing administrative operations
Separate program
Download from
A Guide to MySQL

38. Starting the Administrator
Similar to Query Browser
Can also start from Tools menu in Query Browser
Dialog box requests:
Server host
Username and password
A Guide to MySQL

39. Viewing the Administrator Window
Sidebar has 11 sections
Configure and manage MySQL Server
Manage user privileges
Change startup options
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40. Viewing the Administrator Window (continued)
Monitor database performance
Backup and restore databases
Replicate databases
View catalogs, databases, and tables
A Guide to MySQL

41. Viewing the Administrator Window (continued)
A Guide to MySQL

42. Getting Help in the Administrator
Help command on Help menu
Displays window with list of topics
Click topics to learn more
A Guide to MySQL

43. Backing Up a Database Database can be damaged or destroyed
Recovery: returns the database to its correct state
Backup copy: periodically making a copy of the database
A Guide to MySQL

44. Backing Up a Database (continued)
A Guide to MySQL

45. Restoring a Database
A Guide to MySQL

46. Maintaining a Database
Use Catalogs section
Create, edit, and maintain tables and indexes
Optimize tables, check tables, and repair tables
A Guide to MySQL

47. Summary Use LOAD DATA INFILE to import data
Use SELECT INTO OUTFILE to export data
Use ANALYZE TABLE, CHECK TABLE, OPTIMIZE TABLE to evaluate table performance
Use REPAIR TABLE to repair a damaged or corrupted table
A Guide to MySQL

48. Summary (continued)
Use EXPLAIN and PROCEDURE ANALYSE() to evaluate queries
MySQL Query Browser:
Graphical user interface
Create and execute queries
MySQL Administrator:
Perform administrative operations
A Guide to MySQL