Resolve a case of increasing SQL Performance by adding a local partition Index

My colleague asked for help today, saying that there was a selectquery which would take more than a minute to run on Oracle. He hoped to get results within 5s. The following is a solution to this problem, you can refer to the following SQL statement

Oracle10gRACInstaller fault-Oracle software installation cannot discover Cluster

Oracle10gRACInstaller fault -- Oracle software installation cannot find cluster system environment: Operating System: AIX5300-08 cluster software: CRS10.2.0.1 Database: Oracle10.2.0.1 I. Fault symptom 650) this. srcwww.68idc. cnhelpuploadsallimg15120

MySQL5.7 online Innodb_Buffer_Pool_size adjustment without restarting the mysql process

In earlier versions, it is much easier to adjust the Innodb_Buffer_Pool_size to take effect only after the mysql process is restarted. Application scenarios of this function: 1. Increase the memory on the machine. The DBA is careless and forgets to

[Original] PostgreSQL sorts Arrays

PostgreSQL supports arrays, but does not have a function to sort internal data elements. Today I wrote one with PLPGSQL and PLPYTHONU respectively. Example Table Structure: t_girl # dtest_array; Tableytt. test_arrayColumn | Type | Modifiers --------

Xtrabackup mysql backup (full process from the database)

I. background a database on the online has always been maintained by RD itself. Due to business growth, the data is now 500 GB +, and a slave database is urgently needed to log on to the machine, ah, I am confused, or mysql5.6 (we maintain 5.5).

JDBC connection to MySQL database

The following article describes the actual operation process of connecting JDBC to the MySQL database and the actual application code in the middle of the actual operation. The following describes the specific solution for connecting JDBC to the

How to modify MySQL character set in Liunx Environment (1)

There are different ways to modify the MySQL character set in different environments. The following describes how to modify the MySQL character set in the Liunx environment. If you are interested in this, take a look. Modify MySQL character set in

QlikView connects to IBMDB2 through ODBC

QlikView connects to IBMDB2PART1 through ODBC: Create an ODBC driver connection for IBMDB2. First, go to the control panel and find the control tool. -- select an ODBC Data Source Based on your system version, because you need to connect to the

Poor children's education has produced such a serious bitter fruit

A teacher asked a seven-year-old child, "do you like more fathers, or do you like more mothers ?" Of course, this question is very bad. It hurts children to give birth to separation, give birth to evil, and give birth to evil. Children should be

The same JS timestamp Formatting Function as the date function in PHP

Provides various official and user-released code examples and code reference. You are welcome to exchange and learn. /*** The same time stamp Formatting Function as PHP* @ Param {string} format* @ Param {int} timestamp the time to be formatted is

Php obtains the date of a specified month.

Provides various official and user-released code examples. For code reference, you are welcome to exchange and learn about php to get the date of a certain day of the specified month. /*** Get the day of the specified month* @ $ Year, $ month, $

Group mode template file cross-group include Template

Provides various official and user-released code examples. For code reference, you are welcome to exchange learning templates. The new version of the cross-group include template does not provide this function because of your actual needs. Record

Tpuploadifly Image Upload preview Deletion

Provides various official and user-released code examples. For code reference, you are welcome to exchange and learn how to use tp and uploadifly to upload, preview, and delete images. Features are relatively simple and there are many examples on

ThinkPHP uses cache to solve recursive problems, and only checks the database once.

Provides a variety of official and user-released code examples. For code reference, you are welcome to exchange and learn the basic idea is to first combine the columns into multi-dimensional arrays recursively and cache them. Multi-dimensional

Enable Page. class. php of ThinkPHP to support short paging Routing

We provide various official and user-released code examples and code reference. You are welcome to exchange and learn how to get stuck with me for a long time while configuring short routes during website creation, the Page cannot be modified by

Sample Code of adding, deleting, modifying, and querying the option of the select control in JS

Provides various official and user-released code examples. For code reference, you are welcome to learn about the Javascript operation select, which is a common form, the following describes several common methods for performing select operations in

Extract the parameter name and value from the url

Provides various official and user-released code examples. For code reference, you are welcome to learn how to obtain the parameter value when the parameter name is known. It is easy to use a regular expression. I think the method of online Copy is

Baidu/Google Ping

Provides a variety of official and user-released code examples. For code reference, you are welcome to learn about Baidu/Google Ping, notification crawler crawling, second receiving is not a dream The last time I saw an article about Ping, I used

Date string to Timestamp

Provides various official and user-released code examples. For code reference, you are welcome to exchange and learn. We can use the php built-in function strtotime to format the date as the timestamp, however, because my input box does not use the

Modified thinkPHP3.1.3Auth permission

Provides various official and user-released code examples. For code reference, you are welcome to learn thinkPHP 3.1.3 Auth permission modification edition. Only data in the rule table can be verified! This is my issue:

Total Pages: 12780 1 .... 2644 2645 2646 2647 2648 .... 12780 Go to: GO

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.