Oracle

The current disk partitions and swap partitions are as follows: [Root@bys3 ~]# Fdisk-l disk/dev/sda:21.4 GB, 21474836480 bytes 255 heads, Sectors/track, 2610 cylinders Units = Cylinders of 16065 * 8225280 bytes Device Boot Start End Blocks Id

It is possible that many customers who use Oracle will experience situations where they want to export all of their tables, and this article provides a way to help you solve the problem easily. First log on to the Oracle database with the user

1. Oracle installation After the completion of the initial password? Internal/oracle Sys/change_on_install System/manager Scott/tiger Sysman/oem_temp 2. Oracle9iAS WEB Cache's initial Default user and password? Administrator/administrator 3.

One. Why to learn Oracle We learn a thing the first time, must be asked if we have the value to learn this thing? Well, I've collected some information from the Internet! ~ sorted out the form below! ~ You can see the red part, the red indicates

--Current ordinary user creates issgzt create table Tab_ddl (Login_user VARCHAR2, audsid number, MACH INE VARCHAR2, IPAddress VARCHAR2, Schema_user VARCHAR2 (a), schema_object VARCHAR2, Ddl_time DATE, Ddl_sql VARCHAR2 (4000), MODULE VARCHAR2 (10

Oracle Install GuideMemory Requirements:Minimum:1 GB OFRAMRECOMMENDED:2GB of RAM or More#grep Memtotal/proc/meminfoTo view virtual memory space:Df-h/dev/shm/To install a dependency package:Yum install binutils compat-libcap compat-libstdc++ gcc

Smon is an abbreviation for System Monitor. If the Oracle instance fails, any data that is not written to disk in the SGA will be lost. There are many situations that could cause an Oracle instance to fail, such as an operating system crash that

First step, on the cmd command line, enter sqlplus or Open command window directly in PlsqlStep two, follow the prompts to enter the user name and password1. View processes and Sessions parameters 12345678910111213 SQL> show

Tag:ural    no     operator     use     specify     Caveats     Limitations     type    csharp    The connections between Oracle tables are divided into three types: 1. Internal connection (natural connection) 2. Outer JOIN (1) LEFT outer join (No

We have an Oracle course, I think the code instructions are more complex and more, here are some knowledge points1. View the name and path of the current database control file.Select from V$controlfile;2. View the data file information for the

Optimization of SQL statements in Oracle Learning discourse① when querying with a SELECT statement, do not use "*" instead of all column names, as this will present an analytic dynamic problem for the Oracle system. The Oracle system translates "*"

trunc functionDate is the necessary parameterSyntax format trunc (DATE,[FMT])Select Sysdate from dual; --Current time 2016/9/7 10:32:04select trunc (sysdate) from dual;--take the day 2016/9/7select trunc (sysdate, ' yyyy ') from dual; --Take the

Citation Link: http://blog.csdn.net/w183705952/article/details/7367272How hibernate grows with IDs in OracleThe first: The growth strategy for setting the ID is sequence, specifying sequence's name, preferably a sequence for each table, as is the

12.1.0.2 has been released for some time, with the increase of users, the current version of 12C stability, as well as all aspects of the functionality, get everyone's approval.Many users, need to upgrade the database from a low version to 12C, this

CreateType Tabletype is Table of varchar2( the);CREATE OR REPLACE FUNCTIONSplit (P_list CLOB, p_sepVARCHAR2:= ',') RETURNTabletype pipelined/************************************** * name:split * Function: Returns the table type after the string is

Modifications to many of the tables in Oracle are involved in modifying the project (including: adding, deleting fields, modifying comments, etc.). Since the record was not recorded at the beginning of the test machine, forget the specific changes

Recently in the project to find a problem, Oracle in the query paging data, there are several data repeated query, and a few data in the time of pagination disappeared. Baidu has discovered that when querying data, ORACLE returns rows that are not

Connected toOracleDatabase11g Enterprise Edition Release11.2.0.1.0Connected asFocususersql>SQL> --the JOB needs to be executed at the command line;Sql> --number of job extraction jobsSql> CREATE OR REPLACE PROCEDURERPT2 --Business 3 as

Before simply writing a 10046-event introduction to the article http://hbxztc.blog.51cto.com/1587495/1898624, of course, collecting 10046 trace is not the ultimate goal, able to read and analyze 10046 Trace and then analyze the performance problem

Job timed Run INSERT statement1. Build stored procedure for inserting dataCreate or replace procedure Report_web asV_start_date DATE;V_end_date DATE;BeginV_start_date: = TRUNC (sysdate)-1;V_end_date: = TRUNC (sysdate);Begininsert into [email