Oracle

Oracle Environment: The public dblink that Oracle 10.2.0.1 creates connects Oracle 11.2.0.3 Ora-01017:invalid Username/password; Logon denied ora-02063:preceding line from I. Creating Dblink Create Public database link dmz63 Connect to XYY

These days on business trip to Gansu, a customer cluster a little problem. The CRS detection of the nodes found a bit unusual, but it was strange that the business was not affected. The following are the results of my tests: [Grid@tysy1 bin]$

Original: Http://www.oracle.com/technetwork/database/enterprise-edition/memory.pdf Introduction Oracle JDBC drivers may use a large amount of memory. This is a conscious design choice to weigh before using a lot of memory and improving

Monitor startup error, report the following error:Lsnrctl startLsnrctl for linux:version 9.2.0.4.0-production on 06-jul-2009 14:37:59Copyright (c) 1991, 2002, Oracle Corporation. All rights

--varchar,varchar2 Contact:1.varchar/varchar2 used to store variable-length stringssuch as varchar (20), stored in the string ' ABC ', the field in the database is only 3 bytes, not 20 bytesThe maximum value for 2.size is 4000, and the minimum value

Oracle| Object | data The original developer of a new PHP data object (PDO) Data abstraction Layer gives you a brief introduction to the abstraction layer, focusing on running with Oracle. Need php:5.0Need other: Oracle 8 or later client

1.1. asm:prcr-1079 The ASM listener startup failed. The reason for the error: The Ld_library_path variable was not configured to cause the Oraagent.bin to be unable to locate the library file. Workaround: Configure the Ld_library_path variable.

What is the difference between startup Nomount and startup Mount in Oracle startup?Answer: Startup Nomount: Launch instance, read parameter file, allocate memory space, start background process, open trace file and alarm file. Startup mount: Mount

Because the requirements involve Oracle's CLOB type field, the merge into statement is always unsuccessful in MyBatis's mapper XML file.Attach Error code Keyproperty= "id" >SELECT to_char (sysdate,' YYYYMMDD ') | |Seq_dr_bcxx.nextval as ID from

In this article, we will work together to analyze the Oracle database's XXE Injection Vulnerability (cve-2014-6577), which was released by Oracle on January 20 with patches for this vulnerability.For XXE related knowledge, you can check the security

original December 28, 2015 11:38:01 2004 Tomcat8.0 An exception occurred while running the connection pool:Abstractmethoderror oracle.jdbc.driver.T4CConnection.isValid (I) ZSecond, how to solveDue to driver package: Originally used Oracle 10

In the software development process, programmers often encounter string splicing and splitting work.Take Java development as an example:The foreground passes in a string concatenation of a JSON data, such as: "1001,1002,1003", which may represent a

when using the union all connection, if a set of a column nvarchar2 or nvarchar type, and B in the collection does not have such columns, "to replace is the character set mismatch, there are two workarounds, see the following exampleCases:

Http://www.cnblogs.com/songdavid/articles/2067534.htmlWhen calling the EBS standard API, it may be possible to return some incomprehensible errors, such as when I recently developed rcv_transaction_interface, the data card is not in the interface

You can display modal windows in Oracle Forms to display normal messages, Error message or asking for confirmation eg.   On deleting a record or saving a record etc. using Show_alert command. These modal window messages can be shown using Alert

You want to connect multiple databases in Oracle forms to perform certain tasks, for example you need to execute DDL o R DML statements against databases if you try to use Dblink it gives your error or suddenly quits from the oracle for Ms.

Recently developed that a system has a SQL execution time is fast and slow, let me help to see, this SQL is 4 tables (2 million, 2 100,000) for the inner JOIN operation, the last count (*) aggregation operation, the execution time 1--10s unequal.

Oracle Character Set and encodingMorven. Huang: C #, ORACLE, etc. oracle handbook Series 10: Character Set, encoding, and Oracle Part 1 Character Set and coding knowledge Character Set: Some characters are collected to one place as needed and

Two days ago, a colleague of the database alert log constantly fl the ora-600 [ktbdchk1: bad dscn] error, the impact of the insert statement on a table, not long ago the database storage failure, similar cases are not found in known bugs. The

This is a database of a netizen in the 11g ASM environment. The ASM metadata is damaged, and DiskGroup cannot be mounted. However, we are lucky to store images. Even so, it is said that it took more than one day for storage engineers to recover.