Pro MySQL experts voice in open source phần 5 pot

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Ngày tải lên: 01/07/2014, 19:20

... His first major undertaking was bringing a small mail-order company online (using MySQL) . After hopping around a bit during the 19 90s Internet boom and spending time in the Internet startup world, ... business analyst will focus on three distinct areas: ã Defining problem domains with the customer ã Developing functional requirements ã Defining application scenarios Problem Domains Each...

Ngày tải lên: 08/08/2014, 20:21

... process- ing within MySQL, which we’ll cover in detail in Chapter 5. In this chapter, well cover these fundamental concepts regarding transaction processing: ãTransaction processing basics, including ... data pages remain in memory. CHAPTER 2 ■ INDEX CONCEPTS54 505x_Ch 02_ FINAL.qxd 6 /27 /05 3 :23 PM Page 54 Second, performance drawbacks to using the transaction processing abilit...

Ngày tải lên: 08/08/2014, 20:21

... does maintain a list of pointers (think of them as internal record numbers) to those data records within its indexes. This key cache contains a linked list of pointers referencing address spaces inside ... section contains a recinfo struct for each column in the indexes, containing (somewhat redundant) information about the data types in the indexes. An extra recinfo struct contains infor...

Ngày tải lên: 08/08/2014, 20:21

... on your findings. General Profiling Guidelines There’s a principle in diagnosing and identifying problems in application code that is worth repeating here before we get into the profiling tools ... on a single line with no comments from the developer on why certain joins, hints, and such were used. In our opinion, there are no valid reasons for not inserting line breaks and proper inde...

Ngày tải lên: 08/08/2014, 20:21

... row in Product. Listing 7 -58 shows the EXPLAIN output from the derived table SQL in Listing 7 -57 . Listing 7 -58 . EXPLAIN Output of Listing 7 -57 mysql& gt; EXPLAIN -> SELECT p.name FROM Product ... sales information. Listing 8- 25 shows the join. Notice we use the query in Listing 8-24 as a derived table inner-joined to Product2Category in order to retrieve the appropriate p...

Ngày tải lên: 08/08/2014, 20:21

... database level (in the mysql. db table), or for a specific routine (in the mysql. procs_priv table). Creating and altering permissions: To govern creating and altering a stored procedure, MySQL uses ... engine in your stored procedure statement, you will need to continue to use that table type to use the stored procedure. MySQL stores the data for stored procedures in the proc ta...

Ngày tải lên: 08/08/2014, 20:21

... “Configuring MySQL, ” and “Upgrading MySQL sections in this chapter. Installing Prebuilt Binaries With the exception of having MySQL preinstalled with the operating system, using prebuilt binaries ... a single machine Using an Existing Installation The simplest way to get up and running with MySQL is to use a version of the database included in your operating system installation. Ma...

Ngày tải lên: 08/08/2014, 20:21

... following topics related to backing up and restoring data in MySQL: ãReasons for creating backups ãBackup and restoration planning ãMethods for backing up and restoring MySQL data, including mysqldump, ... confirmation dialog box For more information about using MySQL Administrator, see http://dev .mysql. com/doc/ administrator/en /mysql- administrator-introduction.html. Thinking in...

Ngày tải lên: 08/08/2014, 20:21

... the machines can go offline and not interrupt the database availability. The cluster also provides more processing power as the cluster size increases. As hinted at in the introduction, MySQL s ... handled in the application. CHAPTER 19 ■ CLUSTER 6 19 505x_Ch 19_ FINAL.qxd 6/27/05 3: 39 PM Page 6 19 Replication Process Now that you’re familiar with the binary log, and we’ve hinted at...

Ngày tải lên: 08/08/2014, 20:21

... http:// dev .mysql. com/doc /mysql/ en/crashing.html. Problems Starting MySQL Server Have you ever started the MySQL server only to find that, before you can connect, the MySQL server daemon ended? In MySQL ... Also, starting the server using the MySQL binary itself will keep the process and messages in the forefront, as shown in Listing 20 -10. CHAPTER 20 ■ TROUBLESHOOTING...

Ngày tải lên: 08/08/2014, 20:21

... are DATE— A date in YYYY-MM-DD format, between 1000-01-01 and 9999-12 -31 . For example, December 30 th, 19 73 would be stored as 19 73- 12 -30 . DATETIME— A date and time combination in YYYY-MM-DD HH:MM:SS ... remaining columns in use. For example, the following statement does not list the columns and also does not give a value for id , and it will produce an error: mysql& g...

Ngày tải lên: 13/08/2014, 21:21

... seconds SECOND Number of minutes MINUTE [ Team LiB ] Summary In this hour, you learned how to use include() to incorporate files into your documents and to execute any PHP code contained in include files. ... < (6*7); $count++) { 54 : $dayArray = getdate($start); 55 : if (($count % 7) == 0) { 56 : if ($dayArray['mon'] != $month) { 57 : break; 58 : } else { 59...

Ngày tải lên: 13/08/2014, 21:21

... string: mysql& gt; select rtrim('stringstring '); + + | RTRIM('stringstring ') | + + | stringstring | + + 1 row in set (0.00 sec) mysql& gt; select ltrim(' stringstring'); + ... representing the maximum number of characters per line and a string representing the end of line string you would like to use. So applying the function call print wordwrap( $string,...

Ngày tải lên: 13/08/2014, 21:21

... source Apache installing (UNIX) source code building installation methods (selecting) downloading (Apache installations) uncompressing (Apache installations) spaces (HTML documents) viewing ... command index strings 2nd Indexes directive value info LogLevel directive option information digital certificates INNER JOIN command INSERT command 2nd 3rd 4th 5th 6th 7th 8th 9...

Ngày tải lên: 13/08/2014, 21:21