Oracle

If the user mistakenly deletes/updates the data, as the user does not have any direct method to restore, they must help the DBA to restore the database, to the oracle9i, this embarrassing situation has improved. Oracle 9i provides a new technique--a

The Oracle tutorials that are being looked at are the facets of Oracle data security. Oracle Data Security aspectsAuthor: づ★sl Ares with the popularization of computers and the development of the network, the database is no longer just the topic

The Oracle tutorial you are looking at is: Backup and Recovery of Oracle databases. ----When we use a database, always want the content of the database is reliable, correct, but due to computer system failures (including machine failure, media

The Oracle tutorial you are looking at is: Automatically backing up Oracle databases. It is believed that a large number of system administrators are doing the same job every day-backing up the data. Once a day of negligence, and this day the system

The Oracle tutorial you are looking at is the use and maintenance of Oracle database password files. Summary: Oracle relational database system is widely used for its excellent performance, and ensuring database security is an important part of

The Oracle tutorial you are looking at is: three questions for Oracle Index. Index is a common database object, it is set up and used properly, which greatly affects the performance of database applications and databases. Although there is a lot of

The Oracle tutorial you are looking at is: Oracle also has an injection vulnerability. Recently, MSN, Jiangmin and other well-known websites have been the threat of hackers and attacks, a time on the network jittery. This newspaper department

The Oracle tutorial you are looking at is: Oracle 8x monitor SYSDBA role User login. Prior to the Oracle 8i release, the internal user was used to perform the database startup and shutdown, as well as create database operations; Oracle has been

The Oracle tutorial you are looking at is: Oracle 9i easy access to table and index DDL statements. We all know that before 9i, it would be a hassle to get the statements to build tables and indexes. Our usual practice is to come through the export

Recovery after Oracle mistakenly deletes table dataTest environment:SYSTEM:IBM AIX 5L Oracle version:10gr2 1. Query and modification of undo_retention parameters Use the show parameter Undo command to view the current database parameter

Oracle provides index monitoring features to determine whether an index is in use. In Oracle 10g, collecting statistics will allow indexes to be monitored, and this phenomenon no longer exists in Oracle 11g. However, this method only provides that

ASP (Active Server Pages) is one of Microsoft's tools for developing Internet applications, and the ASP's connection to the database is typically done through ADO (Activex Data Object), like the computer World March 20, 2000 As described in the ASP

If a user queries by using the ORDER by sort statement to specify the sort by employee number, all the records that are created after sorting are temporary data. What do Oracle databases do with these temporary data? Typically, Oracle databases

ORACLE11G is a more generic version, trying to install Oracle 12c unfortunately failed, there is no wayThe following is the collation of information 1. Attached to the installation file Http://download.oracle.com/otn/linux/oracle11g/R2/linux.x64_11

Using Oracle's Dbms_random package combined with rownum to achieve, for example, under random access to 499 households: SELECT * FROM (SELECT * from Busi.t_ar_userinfo ORDER by Dbms_random.value) where RowNum References to Dbms_random, links to:

First, positioning Oracle is divided into two pieces, one is development, the other is management. Development is mainly written to write stored procedures, triggers, and so on, as well as using Oracle's develop tool to do form. Sort of like a

[Q] How to query special characters, such as wildcard% and _ [Q] How to insert single quotes into a database table [Q] How to set transactional consistency [Q] How to use the cursor to update data [Q] How to customize exceptions [Q] decimal and

First, cold backup1, cold backup occurs when the database has been shut down normally, before making a cold backup, you usually need to know the name of the backup file and the path Copy Code code as follows: Sql>select name from

Copy Code code as follows: Using System; Using System.Data; Using System.Configuration; Using System.Data.OracleClient; Using System.Text; Using System.Windows.Forms; Using System.Xml; Using Transactions; DB Summary description

Oracle Query result set, random sort Copy Code code as follows: SELECT * FROM table1 ORDER by Dbms_random.value (); MySQL randomly query out a record: Copy Code code as follows: --The following query statement is efficient,