1, what is a cursor.① retrieves a result set from a table from which the mechanism for interacting with each record is pointed.Operations in the ② relational database are performed on a complete rowset.The rowset returned by the SELECT statement
There are two types of cursors in Oracle: an explicit cursor, an implicit cursor. A display cursor is a cursor defined with the cursor...is command that handles multiple records returned by a query statement (SELECT), while an implicit cursor is a
Key points: +IP a A ifconfig-a atdhclient - ifconfig-a -Poweroff -IP a - ifconfig-a -apt-Get update inApt-getInstall SSH - VI/etc/SSH/Sshd_config thecd/bin/ AboutllSH the LN-s/usr/bin/awk the LN-s/usr/bin/basename the
With a lot of Oracle RAC, shared storage is used. Dual controller with full disk, 15000 rpm SAS full slot, made into RAID 10, the cost is still very large. Recently in the open source hyper-fusion test, has achieved the very ideal effect: to be
Welcome to the big Data and AI technical articles released by the public number: Qing Research Academy, where you can learn the night white (author's pen name) carefully organized notes, let us make a little progress every day, so that excellent
1. View host and database information [[email protected] ~]$ sqlplus/as sysdba sql*plus:release 12.2.0.1.0 Production on Tue May 01:19:35 2018 copyright (c) 1982, Oracle. All rights reserved. connected to:oracle Database 12c Enterprise Edition
In the Oracle database, suspend (hang) refers to the waiting state entered by a process due to the inability to obtain the requested resources, which can be lifted only after the requested resources have been obtained, and the HM implements the
The installation of ODI is very simple, all the way next. However, the JDK must be installed before installation, and JDK 8 is used here. Download the following jar files from the Oracle official website as shown in:Install using the following
When I saw the configuration of the Tomcat data source today, I remembered this question, and I didn't know what thin was at first.Database.url=jdbc:oracle:thin:angel/[email Protected]:1530:monitordbAfter searching the internet, we get the following
This may be what you have been expectingArticle, While paying attention to this part of technical questions, please be sure to read the questions and answers related to the individual during the interview. The answer here is not comprehensive. These
In Oracle R12, Om improved the sales cost and revenue validation process
Http://bbs.vsharing.com/Technology/SOA/677137-1.html
In general, according to the cost income validation principle, both income and sales costs must be recorded in the same
1. Download
: Http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html
This is the homepage for downloading Oracle Instant Client. There are many versions available for downloading.
However, note that third-party tools
Some time ago I started to learn some basic knowledge about oracle. To facilitate exercises and operations, I installed an Oracle 10 Gb. After the installation is complete, the current database is directly deprecated. The card is terrible. The card
PrefaceThis article describes DBA's daily responsibilities in monitoring Oracle databases and how to use shell scripts to perform repeated monitoring. This article first reviews some common DBA Unix Commands and explains how to regularly execute DBA
Create an Oracle database
Create an Oracle database (taking Oracle10g as an example)
There are two ways to create a database: one is to create a database manually using a command line script; the other is to create a database using the Database
BKJIA San Francisco site report] at the 2009 Oracle Global Conference OpenWorld, OOW, everyone is not new to Oracle new database machine Exadata V2 challenge IBM database machine pureScale. However, the current understanding of the Exadata V2
This article is a mixture of translation and originality. It focuses on demonstration and won't talk about many technical details. Let's start. I believe your journey will be easy and pleasant.
To build a Complete Oracle SOA environment from
Here we will introduce more than 40 useful Oracle query statements, covering date operations, server information retrieval, execution status retrieval, database size calculation, and other queries. These are essential skills for all Oracle
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