Detailed description of the installation process of Oracle 11g Database in Linux

Detailed description of the installation process of Oracle 11g Database in Linux Oracle11g database installation specification in LinuxI. Instructions on downloading Database Installation Software (including patches) How to install software in

Analysis of database downtime caused by ORA-04031

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Analysis of database downtime caused by ORA-04031 Background On February 5, the user's database went down unexpectedly. After restarting the server, the Oracle database went back to normal. The user hoped to troubleshoot the problem and avoid

Use shell scripts to view database load

Use shell scripts to view database load In normal times, you may feel confused when viewing database problems. If no one gives feedback on the problem, you will not take the initiative to find the problem direction. awr, ash searches for relevant

View conditions that allow DML operations

View conditions that allow DML operations A view can shield information about some base tables, or join multiple base tables to form a complex query. A view itself can also perform DML operations, but is limited by some conditions. Oracle DML

Error Log enabling in insert and Analysis

Error Log enabling in insert and Analysis In normal work, sometimes a batch of data needs to be inserted, which may be temporary tables, external tables, common tables, subqueries, and other forms, similar to the following formatInsert into xxxx

Oracle exp imp backup and recovery of table space data

Oracle exp imp backup and recovery of table space data Oracle backup is divided into logical backup and physical backup. Logical backup is exp/imp; physical backup includes cold backup, hot backup, and RMAN backup. Exp/imp has three modes: Table

RMAN full backup script

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Solution to impdp exceptions and interruptions

Solution to impdp exceptions and interruptions Check the database load today and find that the cpu consumption is abnormally high. There are many dw processes, but the impdp process does not exist.Check the process of datapump and find a large

11g rac rebuilding the SPFILE of the ASM instance

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Summary of Oracle rebuild table (rename) Considerations

Summary of Oracle rebuild table (rename) Considerations I. OverviewSome time ago, a DBA friend failed to run the business on the morning of the next day after he finished the rename operation and encountered the restriction and error that the data

Oracle online redefinition table based on dbms_redefinition

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Solution to TNS-01190 errors

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MySQL sets utf8mb4 Encoding

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TPCC-MySQL Benchmark Test

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Oracle current_date and sysdate time are inconsistent

Oracle current_date and sysdate time are inconsistent Some time ago, it was found that the operating system time of a newly loaded Rac database was incorrect. When dbtimezone was queried, it was found to be-, indicating that the time zone was

Mysql remote connection is acceptable. Local Connection reports an error. mysql local connection

Mysql remote connection is acceptable. Local Connection reports an error. mysql local connection Use the MySQLdb library of python to connect to the local mysql database. The error is as follows: File "/usr/lib/python2.7/dist-packages/MySQLdb/_

Cocould not find gem & #39; sqlite3 (& gt; = 0) & #39; in any of the gem sources listed in you r Gemfile, sqlite3gemfile

Cocould not find gem 'sqlite3 (> = 0) 'in any of the gem sources listed in you r Gemfile, sqlite3gemfileSolution: sudo gem install sqlite3-rubyERROR: cocould not find a valid gem 'rdiscount' (> = 0) in any repository This problem happened to me for

Key and constraint in SQLSEVER, and SQLSEVER Constraint

Key and constraint in SQLSEVER, and SQLSEVER Constraint SQL Server has five types of constraints: PRIMARY KEY constraint, FOREIGN KEY constraint, UNIQUE constraint, DEFAULT constraint, and CHECK constraint. To view or create constraints, you must

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