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I used a software named ringtones to convert music into available ringtones for the iPhone. I was very happy to use it at the beginning. But one day, I played an interface and told me that I couldn't use it anymore, I have a poor understanding of

ODB research log   Source code analysis started in 2008.5.2 ODB- Odbadapter- Localodb, remoteodbclient, samevmodbclient Istorageengine- Localstorageengine Mockstorageengine and

Recently again learned a bit, feel a lot of benefit, so here to write their own feelings for everyone and their own in the future time to learn.Let's be clear, Java is a compiled language.We compile Java source code into bytecode files, not compiled

The ORA-00354 caused by a read-only rhel5.8 File System: upt redo log block header, An rhel5.8 file system read-only caused by ORA-00354: upt redo log block header Wed Jun 03 03:31:24 CST 2015 Thread 1 advanced to log sequence 396 (LGWR switch)

One rhel5.8 file system read-only caused by ORA-00354: corruptredologblockheader An rhel5.8 file system read-only caused by ORA-00354: upt redo log block header Wed Jun 03 03:31:24 CST 2015 Thread 1 advanced to log sequence 396 (LGWR switch) Current

Once rhel5.8 causes read-only file system ora-00354:corrupt Redo log block headerWed June 03:31:24 CST 2015Thread 1 advanced to log sequence 396 (LGWR switch) current log# 3 seq# 396 mem# 0:/u01/a pp/oracle/oradata/orcl/redo03.logwed June 19:05:48

The diff command is a very important tool on Linux to compare the contents of a file, especially to compare two different versions of files to find the changes. Diff prints each line's changes on the command line. The latest version of diff also

Analysis of "Machine Learning Algorithm Series II" Logistic regression published in 2016-01-09 |   Categories in Project Experience |   | 12573 This article is inspired by Rickjin teacher, talk about the logistic regression some content, although

Shell script for automatic inspection of multiple servers Abstract: O & M services for more than 20 (or more) servers in a project, the performance inspection of servers is performed every day to check whether the CPU, memory, and disk space of the

Conclusion: -- two single-instance databases are used for DG. The database version is 10.2.0.1.01. The master database is configured as archasync, And the slave database does not have STANDBYLOG. The log contains: RFS [4]:

Oracle Archive Error CasesSystem environment:Operating system: RedHat EL55Oracle:oracle 11.2.0.1.0Case:The archive log space of the client database server is stuffed and not found; The DBA forces the library to shut down after discovering that the

Directory [1] constant [2] equal [3] greater than [4] less than the preceding value Relational operators are used to test the relationship between two values. true or false is returned based on whether the relationship exists, A relational

System Environment: Operating System: RedHat EL55 Oracle: Oracle 11.2.0.1.0 Case: The archive log space of the client database server is full and not found. After the DBA finds that the log switch is hang, the database is forcibly shut down, causing

$. Callbacks is newly added in version 1.7. It is a multi-purpose callback function list object and provides a powerful way to manage callback function queues. Whole $. the callbacks source code contains less than 200 lines. It is a factory

Question 1: ScopeCheck out the following code:(Function (){Var a = B = 5;})();Console. log (B); what will be output in the result?Answer:5The main points of this question are two different scopes. 'A' is declared as a local variable by var, but 'B'

--Restore the entire databaseRun {Shutdown immediate;startup Mount;Restore database;Recover database;ALTER DATABASE open;}--Restore Table space usersRun {SQL ' alter tablespace users offline ';Restore tablespace users;Recover tablespace users;SQL '

"Case" in the process of restarting the database; Sql> StartupORACLE instance started.Total System Global area 1.0489E+10 bytesFixed Size 2216224 bytesVariable Size 1677725408 bytesDatabase buffers 8791261184 bytesRedo buffers 178421

Source: http://blog.csdn.net/caohao2008/article/details/3144639 Organize previous content Requirements: 1. First, find the paper with the proposal nature and summarize the typical methods. Second, if we want to use it, which one is more practical or

1.MySQL UNION SyntaxMySQL UNION is used to combine the results from multiple SELECT statements into a single result set. The syntax is:SELECT column,... From table1 UNION [all]select column,... From Table2 ...In multiple SELECT statements, the

Excel Refer to the online data, do your own SQL to Excel case, 1, need to install the case database of MS first: pubs 2, pre-existing C:\temp\test.xls (macro code has been written, including ' Sheet1 ' and ' people ' two sheet) 3, the implementation