Oracle

IamlaosongToday see a MD5 encryption problem, many languages have provided encryption functions, Oracle also provides MD5 encryption function, online search, encryption function is:Dbms_obfuscation_toolkit. MD5 (input_string = ' abc ')However, there

The following is a formal introduction to the actual large-scale projects Oracle the advanced design and development of the content, the following explanation Oracle both the content and the sample programs are based on ORACLE11R2 . in order to

The following is a formal introduction to the actual large-scale projects Oracle the advanced design and development of the content, the following explanation Oracle both the content and the sample programs are based on ORACLE11R2 . in order to

When you cache intermediate data, you need to create a temporary table, in fact, Oracle itself is very much considered in this respect, unless there are some advanced applications, I would consider to create a temporary table. At present, all

After the previous understanding, now want to use C language to program, search a lot of things, and then decided to use Pro C to learn After you have installed the Oracle database, you can program it, and there is a command proc to pre-compile the

1. A data file can only belong to one table space at a time2. Segments are data files that can be cross-domain. However, you cannot generally cross a table space. Partitioned tables can span table spaces, and heap tables cannot span table spaces.3.

The first question, the null value of the argument, needs to be checked for parameters that have no null value.The second problem, unlike MSSQL, is that. NET uses parameterized calls to Oracle without the addition of:, and then in the parameterized

Oracle's database development needs to use PROC,PROC is embedded CThis article mainly introduces the Oracle database development, Linux under the proc Makefile example:1 . Suffixes:. C. o2 3Cc=GCC4Proc=proc5 6procsrcs=oracle.pc7srcs=$ (procsrcs:.pc=.

1. Description of the problemUsing Oracle's EXP tool, I have Oracle 11g installed on my client, and Oracle on the server side is the 9i version. I want to use the EXP command on the client, the following error occurred:Export:release

Case 1: How to know which stage the current database is in sql> select Instance_name,status from V$instance; instance_name             STATUS ----------------------------- --------------------------- orcl                      

Modifying the Oracle Instance nameSystem Environment: CentOS 6.5Oracle Version: 10.21. Check the original database instance name$ echo $ORACLE _sidORCL$ sqlplus/as SYSDBA> select instance from V$thread;INSTANCE----------------------------------------

This article mainly examines the algorithm-recursive programming (tree Generation)---> The code in this article can also use "CONNECT by" in Oracle to complete the requirements.The examination topics are as follows:The procedure is as follows:1.

Things to be aware of when using EXPDP and IMPDP:Exp and IMP are client tool programs that can be used either on the client or on the server side.EXPDP and IMPDP are server-side utilities that can only be used on the Oracle server and not on the

The  oracle Dataguard is the Oracle's own data synchronization feature that transfers log files from the original database to the target database and then applies the log files on the target database, keeping the target database synchronized with

Transferred from: http://blog.itpub.net/27006877/viewspace-739059/As Oracle takes out the 10g download, it writes the Oracle 10g address here for backup.Note: Directly copy the address to the Thunder download canRelease Notes_database_*.zip--is the

Oracle Express Edition 11g was installed today, but after the installation is complete, unable to open the database home page is: 127.0.0.1:8080,baidu,google on the internet for how long, various methods used, such as modifying the port number, etc.,

Environment:Win7 64bit Ultimate Oracle 11gRequired Software and:Oracle 64bit ClientHttp://www.oracle.com/technetwork/topics/winx64soft-089540.htmlPL/SQL DEVhttp://www.plsqldev.com/Configuring Tnsnames.ora file Instances#tnsnames.

1. Absolute valueS:select ABS ( -1) valueO:select ABS ( -1) value from dual2. Rounding (Large)S:select Ceiling ( -1.001) valueO:select ceil ( -1.001) value from dual3. Rounding (small)S:select Floor ( -1.001) valueO:select Floor ( -1.001) value from

Step by step: How to completely delete an Oracle database Many of my friends only use Oracle to delete the system. However, in many cases, he may find that the next installation page disappears when the system is re-installed, and he may have to

DMP version modification tool (C #) When using oracle to import the dmp file, the following error occurs: "IMP-00010: the exported file is not valid. Title Verification Failed. IMP-00000: Import failed :", now we can use the DMP version