sid in

When I updated a view, I encountered this error: ORA-01779: could not modify the column corresponding to the non-key save table 01779,000 00, "cannot modify a column which maps to a non key-preserved table"// * Cause: An attempt was made to insert

Background:The physical memory of the master and slave machines is doubled. After the memory is expanded, You need to modify the memory parameters related to the database, including the database and operating system. After doubling the memory size

The application workload can be defined as services in Oracle 10 Gb, also known as services. It can be used in a single instance or separately used and managed in RAC. Therefore, the entire database load can be divided into multiple different

Environment: CentOS 5.5 32-bit Oracle 10g Preparations before installation: Download epel Source Http://dl.Fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm [Root @ localhost ~] # Rpm-ivh epel-release-5-4.noarch.rpm [Root @ localhost ~] #

SQL Execution time, SQL Execution Enable SQL Execution time statisticsSet timing on;   Check whether SQL statements with long execution time exist.Select a. sid, B. SQL _textFrom v $ session a, v $ sqlarea BWhere a. SQL _hash_value = B.

MASICONG @ orcl> select sid from v $ mystat where rownum = 1; SID ---------- 35 MASICONG @ orcl> select sid from v $ mystat where rownum = 1; SID ---------- 1 1. Simulate the blocking example caused by insert, update, and delete, describe the

Database: MySQL When writing an application, you can display the exception information in the exception handling code for the convenience of debugging the program, so that you can debug the code according to the error prompt. The exception handling

Oracle uses TRACE for SQL Performance Analysis If the SQL _trace parameter is set to true, the entire instance will be tracked, including all processes: User processes and background processes, which may cause serious performance problems and must

Considerations for php (codeigniter) Security 1. httponly The session must use httponly. Otherwise, it may be attacked by xxs. Use js to obtain the cookie session_id. Use the ci_session of the framework, the longer digits, and httponly. These are

After Oracle accidentally deleted the data file, the following error occurs during connection and login: ERROR:ORA-01033: ORACLE initialization or shutdown in progress Solution: First, Log On As a dba user. SQL> conn sys/orcl as sysdba; If you

Listener refused the connection with the following error: ORA-12505, TNS: listener does not currently, ora12505When you connect to oacle12c using java, an error is returned:Java. SQL. SQLException: Listener refused the connection with the following

On November 3 2009, sysinternals retired newsid, A utility that changes a computers Machine Security Identifier(MACHINE Sid). I wrote newsid in 1997 (its original Name was ntsid) because the only tool available at the time for changing machine SIDS

Let you quickly review the notes of the statement. Create Table users (Username varchar (20) primary key,Userpwd varchar (20)) Alter table users add age int Insert into Stu (sname) values ('sdfdsfdsfeeeeee ')Update CJ set Cj = 60 Where sid =

The database design paradigm is a very important concept, but this importance is only suitable for reference. With the database design paradigm, data tables can be better stored, because a reasonable design will certainly have performance problems

Use Oracle Universal Installer (Oui) Installation Software You can use ORACLE universal Installer (Oui) to install your Oracle software. Oui is a GUI tool that allows you to view the Oracle software installed on your machine, install new

The first is several terms that need to be understood: a cluster refers to the physical connection of multiple computers. RAC is short for Oracle Real Application cluster. Official Chinese documents are generally translated as "real application

1. http://www.oracle.com/technetwork/database/windows/downloads/odpmbeta-1696432.html download Oracle driver, this is managed version. 2. After the installation is complete, you can see Oracle-related tools in vs2012, which is much easier to use

  My colleague said that a table in the test database was locked. You cannot perform DML operations. The exact description of the lock table should be blocking. The previous blog has the following descriptions: Lock deadlock blocking latch wait

The Zookeeper 336 and V2 use the rtl8188cus chip. In the given document (included with the CD), the supported kernel is 2.6.18-2.6.33, And the opensuse11.4 kernel version is 2.6.37. Opensuse:/usr/src/Linux # lsusb bus 001 device 001: Id 1d6b: 0002

Directory Authorizationrule: Basic ace Accessrule: ACE (in DACL) Auditrule: ACE (in SACL) Local ace object Objectsecurity: SD (DACL, SACL) Commonobjectsecurity and nativeobjectsecurity Local entity SD   Note: Only managed Secure Access