Database Administrator

Restore database backup in a new environment. An error occurs during data file restoration. Environment Description: Oracle 10.2.0.3 for solaris 10, the backup database is RAC, and the recovery is performed on a single instance. The operation

◆ The expression of the Oracle Check constraint must reference one or more fields in the table, and the calculation result of the expression Must be a Boolean Value ◆ Can be defined at the table level or field level ◆ Multiple Oracle Check

Last time we introduced the new feature of Oracle 11 GB-virtual columns. Today we will introduce another new feature-read-only tables. Read-Only tables are no different from normal tables, but no DML (Insert, Update, Delete) operations can be

In the morning, I received an alert text message on the way to work. An error occurred while archiving an alert library. The content of the alert. log file is as follows:Wed Jul 25 06:00:02 2012Errors in

On the platform after Oracle 10.2.0.4, we may encounter the following error when importing materialized views using a Data Pump: ...Ksedmp: internal or fatal errorORA-7445: exception encountered: core dump [_ intel_fast_memcpy.A () + 10][SIGSEGV]

Oracle HomeKey error may occur in two cases. Error description: Initialization error SQL * Net not properly installed OracleHomeKey: SOFTWARE \ ORACLE OracleHomeDir: Solution: 1. An error is reported when you connect to oracle using some

In windows, proc does not support access through the parameter list, but in Linux, it does! Void insert_sale_to_db (float tm){Exec SQL WHENEVER SQLERROR GOTO ERROR;Exec SQL INSERT INTO SALE VALUES (: tm );Exec SQL COMMIT WORK;Return; ERROR:Makelog

Let's talk about rba, rba = redo byte address. When it comes to rba, we need to know a few points in advance, that is, controlfile header, ckpt process, dbwn process, and dirty buffer. Let's take a look at the composition of RBA: It consists of

Receive the contract_no and item_no values and search for them in the inventory table. If the product:Delivered, assigned in arrival_date as the 7 days after todayOrdered. In arrival_date, the value is assigned to the month after today.If there is

1. When installing mysql2 using gem, the following error extconf. rb: 2: in 'require ': no such file to load -- mkmf (LoadError) from extconf. rb: 2 is prompted. Building native extensions. This cocould take a while... ERROR: Error installing mysql2:

Hibernate automatically creates a table by configuring true and create , You can automatically create a table and display the statement for inserting data on the console. However, the table creation statement cannot be displayed, this is because

1. Environment Introduction Site Unique_db_name Primary 192.168.1.102 Stydb Physical standby 192.168.1.101 Ql SQL> select protection_level from v $

This test does not compare data from the time dimension, but simply compares data from the bucket dimension.-- Operating System Environment[Oracle @ 11grac1 ~] $ Uname-Linux 11grac1 2.6.32-300.10.1.el5uek #1 SMP Wed Feb 22 17:22:40 EST 2012 i686 i686

Some people have discussed whether Transfer can support the dual-master structure. The answer is yes. Here is a brief description. Background Transfer can be used as a tool other than the Master/slave database or act as a server Load balancer. This

MySQL remote full backup: # Bash/sh! Echo"Start backup ..."  # MySQL Info SQL _user = root SQL _psw = root SQL _db = buke_user Name = $ SQL _db $ (date + % y % m % d). SQL Backup_path =/home/backup File = $ SQL _db $ (date has been

Incremental synchronization of data in two databases Oracle Database IP Address: 192.168.0.1 (source database), 192.168.0.2 (target database) 1. Create a TEST table in the source database Create table TEST ( Id number not null, NAME VARCHAR2 (20

Only Oracle is installed in Linux, and an Oracle user is installed in Linux. The user's directory is in/home/oracle Therefore, you must use an Oracle user before logging on to Oracle. Su-oracle conversion user Sqlplus/nolog does not connect to

Target DB/RMAN Client: 11.2.0.1.0 1. When configure controlfile autobackup off;, only system01.dbf is backed up, the control file is automatically backed up; 2. When configure controlfile autobackup on; is enabled, any files (data files/archive logs)

Today, the Oracle Development Server suddenly fails to connect. After the sqlplus/nolog, conn/as sysdba, and startup commands are displayedSQL> startupORA-01078: failure in processing system parametersLRM-00109: cocould not open parameter file '/opt/

A machine, the disk was found to scan, it is estimated that the shutdown encountered problems yesterday, Oracle appeared after ora-01172 ora-01151Hurry to find information to solve, and encountered a ORA-12514 error, the first solution to this error