Tns-12541:tns:no Listener TNS-12560 Tns-00511:no Listener

To test the need, the system administrator helped to clone an Oracle database server to a virtual machine, I went up to delete the root, Oracle, Tomcat account crontab timed job, and then launched an Oracle database instance, delete the job under Ora

Non-predicate verb to do subject

Non-predicate verb to do subject Todo called infinitive, can act as a variety of ingredients, it does not have a fixed form, belongs to the "universal substitute." [To repair bicycles] is his job. "It's his job to fix the bike." The subject is put b

The actual combat of XML volume (1)--Dynamic sorting

The sorting function makes the data on our page more humanized, which is a common function effect we have seen on the website. In the past, automatic sorting was done with a lot of scripting code, which is a difficult thing for the average enthusiast

Cloud host environment set up a course to build the Universal mainframe

Many owners in the purchase of virtual host, will look at the virtual host some of the parameters, the most important is the support of the program language. Now many IDC businesses are claiming the almighty host. The most funny thing is that I just

CSS3 Web Crafting tips: CSS3 multiple backgrounds

Article Introduction: CSS3 The following versions of background can only have a single picture background settings, tiling, background position. And in CSS3 gives it more power, can set more background picture, this is to say today CSS3 multiple back

Div vs. table Two page layouts for usability comparisons on large Web sites

div and table itself does not have any advantages and disadvantages, the so-called web standards are recommended is the correct use of tags, such as: div for layout, and table is the two-dimensional data. Letting table do what you do is not to say ho

HTML5 cross-browser front-end form validation

Form Validation is a huge headache for the front end of a transaction, especially in the face of complex forms, such as some input boxes only accept digital input, some fields are required, and some items must meet the input rules ... In order to pro

CSS3 Tutorial: Relative unit REM Detailed

Article Introduction: CSS3 has added a relative unit of REM (root em, root em), a unit that has aroused widespread concern. What is the difference between this unit and EM? The difference is that when you use REM to set the font size for an element,

Before making a website look at these good web pages technical specifications

Specification | Web page Naming conventionsThe principle of file naming: To achieve the most understandable meaning with the fewest letters. general file and directory naming conventions: Each directory should contain a default HTML file, the file

Install Forefront Threat Management Gateway under WIN2008

The Forefront Threat Management Gateway can only be deployed in the Windows Server 2008 operating system. When you install the Forefront Threat Management Gateway, you need to use a Microsoft SQL Server 2005 database that automatically installs the

Syslog Listener died errno::eacces:permission Denied-bind (2)

Local_syslog.conf Input { Syslog { port = ' 514 ' } } output { Elasticsearch { hosts = = ["node1:9200"]< C7/>index = "Syslog" } } Start Logstash Error: [Elastic@node1 logstash-6.2.3]$ bin/logstash-f config/loca

Human face detection using OPENCV and deep learning

PrefaceThis tutorial enables simple, fast face detection based on OpenCV3.3.1 or later versions such as OpenCV3.4, DNN modules, and face_detector samples. The main reference face detection with OpenCV and deep learning this English course, and make s

ERROR 1418 (HY000): This function has none of deterministic, NO SQL, or READS SQL DATA ...

Tags: mysql errorCreate function todayCREATE FUNCTION ' func_get_split_string_total ' (f_string varchar (+), F_delimiter varchar (5)) RETURNS Int (one) BEGIN return 1+ (Length (f_string)-Length (replace (F_string,f_delimiter, '))); ENDError message:

"Ora-12541:tns: No Listener" error occurred while resolving PL/SQL Developer Connection Database

Label:Occurs when connecting to a database with PL/SQL developer"Ora-12541:tns: No Listener" error.1. Check Listener.log logThe following error was found:Tnslsnr for 32-bit windows:version on 20月-September-2008

"Blog begins" Server configuration: windows2008r2+php5.6+sqlserver2008 (X64)

Label:Now popular lamp, if you choose Windows Server, then generally choose Server (can be referred to as WINS), these configuration is very convenient.But there are some special server configuration, for example: Windows R2 x64 +

Generate, view MD5, SHA, SHA256 values for a file

Tags: art view util MD5 certutil system txt sha cerGenerate files for MD5, SHA, SHA256Linux systems generate MD5, SHA, SHA256md5sum >> MD5.txtSha1sum >> SHA1.txtSha256sum >> SHA256.txtWindows system

Image BASE64 Encoding

Tags: Insert program style represents yourself nbsp jquery plugin Control conversionsWe often do jquery plug-ins When we need to insert some custom controls, such as buttons, and we think the button tag is ugly, and different browsers show the

How much do you know about hackers? ----Hack Starter learning (common terminology +dos operations)

Label:How much do you know about hackers? ---- hack starter Learning ( Common terminology +dos Operations )      · 1.1 · PrefaceHackers were once translated from English "Hacker", referring to computer enthusiasts who

FTP-------Application Layer protocol

Tags: ftpFTP is the abbreviation for file Transfer Protocol (document Transfer Protocol), and Chinese is called "Interfax protocol". Used for two-way transmission of control files on the Internet. At the same time, it is also an application

Play a picture Base64 encoding

Tags: Picture base64 encoding Base64 encoded picture encoded picture encryption decryption background picture optimization  Introduction  Figure chip processing in the front-end work is a very important to occupy a wall of Jiangshan. and the picture

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