Oracle

Flash-back technology was introduced in oracle10g, but this does not mean that all tables will be successful, and when there is not enough disk space, Oracle uses disk space in the Recycle Bin, and the bitmap connection index and referential

Oracle's table locking and unlockingOracle looks at the locked-down table and locks the dead process.Select Sess.sid, sess.serial#, lo.oracle_username, lo.os_user_name, ao.object_name, Lo.locked_mode from v$locked_object lo,

Keyword: Oracle to MySQL, Oracle to MySQLOkay, try it. Navicat family's new product Navicat Premium, he integrates Oracle, MySQL and PostgreSQL management as one, personal feeling very strong (feel Fast)!On the whim, can oracle import MySQL? Try it

In the EO of the ADF, there are many ways to validate the data, and one of the most useful is the method validation. Next I'll have two time fields for example to show you how to use method validation.Graphic:650) this.width=650; "src="

Data backup, data deletion, data restoreConnect to the database to see all the tables below the Scott userData backup (data export) to enter the export file path and file name (file extension can be entered or not input)After the export is

A bit of Oracle 12c. Some of the experiences are written down first.12c engage in new meaning, get a CDB (container database, not business center CBD yo) and PDB (pluggable database). The PDB is inserted into the CDB.In simple terms, CDB is a

Oracle as a large database, in many large companies have applications, so it is necessary to understand, especially some Japanese companies use more Oracle , these days set foot on the Oracle 's Learning journey. 工欲善其事, its prerequisite, first from

When the data in the table is not needed, you should delete the data and free up the occupied space, and delete the data in the table using the DELETE statement or the TRUNCATE statement, as described below.One, DELETE statement(1) Conditional

1. MERGE into usesMERGE into is a new feature that appears only after Oracle 9i. So what is this feature?To put it simply, it is: "There are updates, none are inserted"From this sentence, it should be understood that when merge into operates an

1. Enter the sqlplus in the cmd command:The corresponding DOS commands are executed:(1) Set oracle_sid = $INSTANCE _name(2) Sqlplus/nolog(3) Connect User/password as Sysdba(4) Startup/shutdown2. ORA-01113 file requires media recovery solutionConn/as

1. First of all, install the Oracle database. 2, use Sqlplus to enter SYSDBA permission, sqlplus "/as sysdba", for example: 3. Create user framework, for example: CREATE USER Framework Profile DEFAULT identified by frameworkDEFAULT tablespace USERS

Classification of databases1. Small database access, foxbase load is small, 1000 people, such as message book, within the cost of thousands of dollars2. Medium database SQL Server, MySQL, Informix Daily visit volume 10000--15000, cost in million3.

Oracle Study Notes series ------ usage of basic functions of oracle basic operations, oracleexists usage   -- CREATE an accout account table create table account (id NUMBER (9) not null, recommender_id NUMBER (9), login_name VARCHAR2 (30) not null,

Oracle user account locked, oraclelocked 1. Question describe When you use account scott/tiger connect to oracle, you will see "the user account is locked ", Because you did't unlock the account when you install the oracle. 2. Solution: ~ Login

In Oracle, the number type data to_char () is displayed as 0 less, or the value is, Problem description: When the to_char () function is used in Oracle, when the number value is a decimal number, it is often not displayed for a single digit 0.

OracleEBS view the output of a request submitted by another user Tip: this function is generally only used by developers!In use cases, EBS developers sometimes modify reports based on feedback report bugs. The EBS system administrator can query

[Translated from mos] Which audittrail is supported in 12c database? Which audit trail is supported in the 12c database?Source: What Audit Trail Types Are Supported For A 12c Database? (Documentation ID 1986609.1) Applicable:Oracle Audit Vault and

Oracle Installation diagram under Windows ---- oracle-win-64-11g detailed installation steps, oracle11g installation Diagram 1. Oracle download   Official AddressHttp://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html win 3

Oracle exception examples This example describes Oracle exception usage. We will share this with you for your reference. The details are as follows: I. Exception Classification Oracle classifies exceptions into predefined exceptions, non-predefined

Turn: Use of merge into in Oracle, oraclemerge Recently, Oracle's Merge was used in the project. This command uses a statement to update and insert data to a table from one or more data sources. in ORACLE 9i, the UPDATE and INSERT keywords must be