Database Administrator

Phpmyadmin: no score. Download it now! Http://download.csdn.net/detail/u011986449/7429799 1. find/libraries/config. default. PHP file (config. default. copy php to the phpmyadmin directory and rename it config. inc. php), the file has the following

The concept of Partitioned Tables and tablespaces is distinguished between Oracle partition tables: Table space: A table space is a collection of one or more data files. All data objects are stored in the specified table space. Partition Table:

I. Environment Introduction SQL ServerPRINT @ VERSIONMicrosoftSQLServer2012-11.0.2100.60 (X64) Feb10201219: 39: 15 Copyright (c) microsoftconfigurationenterpriseedition: Core-basedLicensing (64-bit) onWindowsNT6.1 (Build7601: ServicePack1)

This is the third article on MySQL SQL optimization. A company's business system frequently throws a problematic SQL statement. We have made fundamental statistics on such SQL statements: These SQL statements have been executed for 12 times

This article will not be practical. Some resources are quite good. Let's share a link with you. The online cool predecessors can always create benefits for our elders !!! Young !!! Haha! I have found a good website on the Internet, which is better

Splits strings.MYSQL version. Because MYSQL does not support recursion and does not support returning results of the table type, the code is cumbersome. I use two functions and a stored procedure.-- Obtain the total number of delimiters. DELIMITER $$

The following method is a general summary of the massive data processing methods. Of course, these methods may not completely cover all the problems, however, such methods can basically deal with the vast majority of problems encountered. The

HIVE Row_Sequence achieves column auto-Growth Package org. rowsequence; Import org.apache.Hadoop.hive.ql.exe c. Description;Import org.apache.hadoop.hive.ql.exe c. UDF;Import org. apache. hadoop. hive. ql. udf. UDFType;Import org. apache. hadoop. io.

Just a year later, I found that zabbix's mysql backup file was unusually large during routine checks on server backup data, considering that zabbix regularly sends alerts and SQL records stored during monitoring during routine monitoring of server

This is a small example of sqlldr in the exercise thinking book. It is to save the excel file as csv and load it into the Oracle database through sqlldr. The purpose was to demonstrate the processing method of sqlldr In the csv file and strings in

In Oracle RAC, in addition to the TAF Method Based on the client, there is also the TAF Method Based on the server. You can regard the TAF method of the server as an upgraded version of the TAF method of the client. The TAF of the server must be

Running Environment: Ubuntu + Oracle 11.2.0 ORA-12547: TNS: lost contact error occurs when the command starts oracle. Good afternoon, no matter in the afternoon. If the link is invalid, it will not work after Shutdown and restart. Then google found

Background When installing the Oracle database software, we have a flash recovery area option. If we do not select this option, it means that the quick recovery area is not enabled. We can enable or disable it after the database is installed. To

Login connection errors are the most common problems we encounter during Environment configuration, changes, and new Client installation. The logon process involves the client network, operating system, TNS configuration, listener working status,

When a report is displayed in Cognos, the "no available data" is displayed because there is no data. So I want to use an image instead. There is a "no data content" in the chart attribute. After clicking "open", there are three options: 650)

In Oracle 10 Gb database applications, the UNDO tablespace is too large, leading to insufficient disk space and crash. After analyzing the problem, the main reasons for the problem are summarized as follows: 1. There is a large volume of

I. IntroductionSince dba left the company, I managed all oracle database servers in part-time. I logged on to a database in a certain province today and found that I had logged on to the database about 30 seconds ago. Then I checked the load and

I. queue and shared resourcesShared resources can be accessed by multiple sessions and processes at the same time. Therefore, its access needs to be protected. In Oracle, everything except PGA includes memory, disk, CPU, table, index, and

The general paging method is like the following:The so-called "three-layer nesting" Statement), SELECT *   FROM   (SELECT a.*                 ,rownum rn           FROM   (SELECT * FROM table_name) a           WHERE  rownum  WHERE  rn >

Application of Regular Expressions in ms SQL Server the Oracle database provides regular expressions by default. For details, see wikipedia. For example: REGEXP_LIKE (), REGEXP_INSTR (), REGEXP_SUBSTR (), REGEXP_REPLACE (), which is not directly