Oracle

There are three login methods: 1.sqlplus.exe command lineProgram. Start-all programs-accessories-command line prompt-input sqlplus.exe-enter username Scott-Enter Password Tiger (default password Tiger)-select * From tab;-press ENTER 2. isqlpuls

The first three paradigm of database design is that the independent table structure must have a unique primary key to identify the table data.SQL Server (duoOn the platform. Manually encode the primary key in the table and set it as an

Course class for Oracle OCP training on April 9, April Avtech successfully held the Oracle database training on April 9, April. This course lasts for 11 days, including SQL, Management 1, and management 2. The training environment is Oracle

Official Oracle textbooks (9i, 10g and app 11i) If relevant documents are uploaded in the future, they will be added to this post. PS: all attachments can be downloaded and opened after testing. If they still do not work, they can be downloaded from

I often use dual and forget what it means. I will try again. Dual? What's mysterious? When you want to get the Oracle system time, simply type a line of SQLIsn't it? To learn more ....SQL> select sysdate from dual;Sysdate---28-sep-03Haha, it is

I used to export data from Oracle to excel in batches. To put it simply, I used sqlplus to import the table data to a text file or a simplified Excel file, what I want to do here is the opposite. The tool uses sqlldr, and the usage of sqlldr is not

1. Create a data table Create Table T (Id integer,Name varchar2 (50)) 2. Add data Insert into T values (1, 'zhao ')Insert into T values (2, 'Qian ')Insert into T values (3, 'sun ')Insert into T values (4, 'lil ') Iii. Case usage: assign a new

Oracle Database shutdown Methods 1. Shutdown normal Close the database normally. 2. Shutdown immediate Close the database immediately. Run shutdown immediate in svrmgrl, and the database is not closed immediately, However, it is disabled only

Analysis of Oracle Database Log Files (1) 1. How to analyze logminer Currently, the only way to analyze Oracle logs is to use the logminer provided by Oracle. All changes to the Oracle database are recorded in the log, however, we cannot

Recently, I had to study the Oracle database because of the need of the project. I think back to the last time I used Oracle for years. During my internship, BMW Brilliance's project had a simple access to Oracle. This project needs to be based on

Windows XP, database Oracle 10.2.0. 1There is no backup, which is basically installed by default. It does not seem to be in the archive mode. Symptoms: sqlplus only sysdba users can go in, other users will report: ora-01033: Oracle is initializing

1. First, you should install oracle on a separate server and perform dbca to monitor and start the service normally.2. Install Oracle network software on the SDE server to execute SQL statements on the SDE server to manipulate the remote ORACLE

There are two types of triggers: after and before. The difference is that each commit transaction is triggered once and each row of data is updated once. Pay attention to this when using the trigger to avoid failure to achieve the goal. The

Oracle control file backup 1. Back up the control file as a binary fileSQL> alter Database Backup controlfile to 'I: \ oracle \ backup \ Control. bkp ';2. Back up the control file as a text file (back up to the tracking file under the

[Case] database faults caused by Oracle Control File Corruption Problem:1. All clients cannot log on this morning, and the system prompts that the application server configuration is incorrect. Analysis and connection processing:1. Check

Oracle 10g middleware uard practices The procedure is as follows: 1. master database operations1. Modify the attributes of the master database:Alter system force logging;# View statusSelect force_logging from V $ database; 2.

"Oracle Database entity generation tool for Winston". Refer to the original Winston tool dbtoentity. (Note: This tool was designed and developed by our boss "feather fan towel". Thanks again for providing us with such a good development auxiliary

Have you ever encountered such a problem, During system design, some text content with relatively large content will be stored in the table (Oracle longe type can store up to 2 GB of text) It may not be a problem at the beginning, but after a

1 Select Doc_id, extractvalue (xml_data, ' /Experiment/parameters/parameter [@ Col = "h" and @ ROW = "Test 1"] ' ) 2 From Experiments 3 Where Existsnode (xml_data, ' /Experiment/parameters/parameter [@ Col = "h" and @

Find a comparison between oracle and DB2 data types on the Internet. Oracle DB2/400 Oracle Data Type Notes DB2 UDB Data Type Notes DATE   DATETIMETIMESTAMP l If only MM/DD/YYY is used, the DATE type is