Oracle

1. The default username of Oracle 10g, sysman. The password is entered at the beginning of Oracle installation. 2. When the user em starts the database, it encounters: remoteoperationexception: Error: Wrong Password for user: The solution is as

Differences between char, nchar, varchar, varchar2, and nvarchar2 in Oracle 1. Char (Size) And varchar (Size) Difference Char is a fixed-length field with a maximum length of 2 K bytes; Varchar is a variable-length field with a maximum

Some errors such as "ora-03113 communication channel ended" were reported in exp to guide a user's data, and a lot of information was not solved on the Internet After careful observation, it is found that the error is returned every time the large

After two days, I finally made a desired result...Here is just a summary of my learning process to help those who need it! Prerequisites:The company asked our newcomers to accompany the server to the XML file on the mobile phone end. To put it

What is the Oracle diagnostic methodology (ODM )? [ID 312789.1] ODM test: Query statement: Select to_number (ADDR, 'xxxxxxxxxxxxxxxxxx') from V $ latch_parent where name = 'process allocation ';Select name from V $ latch_parent where name like '%

Use it accidentallyDrop tableStatement to delete the table, data is not backed up. It means that data will still be lost when the data is backed up and restored, so you don't have to worry too much at this time. MaybeOracleRecycle Bin (Recyclebin)

Colleagues want to save the stored procedure written by the project team, instead of dumping, but they can view it at any time. Each stored procedure is stored as an independent file. The first thing that comes to mind is that the development tool

Q: During data migration, I wanted to import the data into a tablespace different from the original system. After the import, I accidentally found that the data was imported into the original tablespace. How can I solve this problem? A: Let me

DBAs often need to reinstall or install oracle on new machines in their daily work. However, the waste of time, energy, and setbacks of each installation test the DBA's affordability, this article focuses on a simple method for copying and migrating

Multiple Oracle databases physically stored in the network can be logically considered as a single large database. Users can access the data in the remote database through the network, server-to-server collaboration for workstation users and

I learned and tested how to restore an Oracle database in archive log mode. The system is Win2k SERVER + Oracle 8.1.7. For more information, see chinaunix.net and itpub.com. Thank you for your help. Note: It is very important to develop a good

I often find someone asking me on the forum how to speed up exp/imp. Article The description is detailed. The excerpt is as follows: 1. Exp tuning 1. use the direct and recordlength options direct parameter to define whether to use direct path

The following error is reported during user import: (exp user/pwd @ test owner = za3607 ......)EXP-00008: Oracle error 942ORA-00942: Table or view does not existEXP-00024: Export view not installed, please notify your DBAEXP-00000: Export

private dB link check the password, Public dblink you can also see the password. You just need to use sys query user logon. query dblink User password , use sys login Select*FromSys.Link $; Select*

In Oracle, how does one analyze SQL statements in stored procedures? Let's take a look at how to analyze statements. Analysis tools found in oracle tools: Oracle-OraHome90-> Enterprise Management packs-> tuning-> SQL analyze Start logging on:

A snapshot of an Oracle database is a table that contains query interceptions on one or more tables or views in a local or remote database. Because snapshots are a subset of a master table, you can use snapshots to speed up database queries. When

-- Loop/is equivalent to do while Declare S Number : = 0 ;I Number : = 1 ; Begin Loop Exit   When I 10 ;S: = S + I;I: = I + 1 ; End Loop;Dbms_output.put_line (s ); End ; -While

After many practices, see N multiple onlineArticle...... The final configuration is not complete. I may be too savvy to take notes from experts. It was finally completed with the help of the predecessors. We use the most practical method to record

Oracle can remotely connect to pl SQL remotely without installing a client. Oracle can be remotely connected using PLSQL without installing a client Every time I ask people whether PLSQL can connect to the server remotely, they say they

Oracle provides wrap tools to encrypt your package.However, the encrypted code cannot be decrypted. You need to keep your source code safe. The following is an example: 1. Source Code Create or replace function get_rowid(L_rowid in varchar2)Return