Oracle

Oracle client streamlined files that enable database communication, direct and software packaging: The first step: Copy files: Mainly four directories: Bin,nls,oracore,network. The list of documents is as follows (Bin DLL section below is the most

The difference between call and exec in Oracle Today, the project to use Oracle, in the process of doing the project feel very interesting, looking for some information to share with you: In the Sqlplus: Tools provided by third parties (e.g.

Linux automatically backs up Oracle data: Once a colleague, back and forth operation of the development and production of the database, the results mistakenly deleted the production of the database, the mood I think not ordinary people can

Querying the SQL statement that Oracle is executing and the user executing the statement SELECT b.sid Oracleid, b.username login Oracle username, b.serial#, spid operating system ID, paddr, sql_text Executing sql ,

Here's a way to implement Oracle, 2 steps: 1. Create SEQUENCE Create [OR REPLACE] SEQUENCE sequence_identity START with initial seed INCREMENT by step MAXVALUE Upper B Ound [Nomaxvalue] nocycle [empty] 2. Create TRIGGER Create [OR REPLACE] TRIGGER

1. Basic structureCreate OR REPLACE procedure Stored procedure name(Parameter 1 in number,Parameter 2 in number) isVariable 1 INTEGER: = 0;Variable 2 DATE;BEGINEnd Stored Procedure name2.select into STATEMENTSave the results of a select query into a

How can I insert data obtained in table A into another table B? (1) for Table A and Table B two table structure exactly the same words (number of fields, the type of the corresponding field, etc.), you can use INSERT INTO B select * from

Recently, a lot of people in the group discussed Oracle security issues, and today I found some information to learn Gets some of the properties of the Oracle current session (useful for SQL injection environmental judgments) The Sys_context

C Shell Perl php date Time conversion: seconds and human readable date scalar localtime and seconds since ' 00:00:00 1970-01-01 UTC ' Scalar localtime 26-byte string with seconds since ' 00:00:00 1970-01-01 UTC ' (Number of seconds since January 1, 1

The update in an Oracle SQL statement can be used in conjunction with sequence to update the value of a field consecutively, without using a cursor to iterate through the database records. For example, update sample Set id = seq_id.nextval; The

Today found a small thing, feel very interesting, look for some information to share with you: In the Sqlplus: Tools provided by third parties (e.g. Plsqldev) Summarize: exec is a sqlplus command that can only be used in Sqlplus. Call is an

Install oracle12c under Linux Centos6.5 64bit: Groupadd oinstall groupadd dba mkdir-p/u01/oracle useradd-g oinstall-g dba-d Oracle (not Be sure to change the home directory to/u01/oracle, which is also available by default. ) Copy the

LENGTHB (String) to calculate the byte length of a string: Returns the length of strings, in bytes Length (string) to calculate string size: Returns the length of the string, in characters eg Remove the 15-bit string at the back of the

This article for you to share the installation of Oracle 12c [INS-30131] error of the solution, for your reference, the specific content as follows Solution: Step One: Control Panel > All Control Panel Items > Admin tools > Services >server

first, review the previous Oracle Development window function in the section on the full statistics, we use Oracle-provided: Copy Code code as follows: SUM (SUM (tot_sales)) over (order by month rows between unbounded preceding and

Initialize related parameters job_queue_processes Alter system set JOB_QUEUE_PROCESSES=39 scope=spfile;//maximum value cannot exceed 1000 job_queue_interval = 10//Schedule Job Refresh frequency seconds Job_queue_process represents the number of

One of the most important things DBAs do in their daily work is to see how the table space is being used, to see if there is a full table space. The specific methods and steps are as follows: First step: Open Plsql Step Two: Create a new SQL

This article summarizes the Oracle mathematical correlation functions. Share to everyone for your reference, specific as follows: 1. Absolute value: ABS () Select ABS ( -2) value from dual; 2. Take the whole function (big): Ceil ()

The Oracle tutorial you are looking at is: Oracle Application Experience (2). ------who is accessing the database? Select C.sid, C.serial#,c.username,a.object_id,b.object_name, C.program,c.status,d.name,c.osuser From V$locked_object A, All_objects B,

Administrator user logs into Oracle database1. Create a temporary table spaceSelect name from V$tempfile; Find out the current database temporary table space, mainly using the inside of the storage path;Get one of the records/OPT/ORACLE/ORADATA/ORCL/