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Oracle PL/SQL CEIL function example

The CEIL function round the specified number up, and return the smallest number that is greater than or equal to the specified number.

Date: 2019-08-11 View: 1351
Oracle PL/SQL ATAN and ATAN2 function example

This article show you how to use ATAN() and ATAN2() function in Oracle PL/SQL.

Date: 2019-08-11 View: 1277
Oracle PL/SQL ALTER function example

The ALTER FUNCTION statement explicitly recompile a standalone function. Sometimes, ALTER TABLE on the table being used in function will cause the function becomes INVALID, we need to recompile (alter function) it to make it VALID again.

Date: 2019-08-11 View: 1766
MongoDB Failed to unlink socket file /tmp/mongodb-27017

Upgraded MongoDB and unable to start the mongod process, review the /var/log/mongodb/mongod.log file, and found the following error messages :

Date: 2019-08-11 View: 2459
MongoDB bind() failed errno:99 Cannot assign requested address for socket

Review the server environment, we need to allow Server B to access the Server A MongoDB database.

Date: 2019-08-11 View: 1712
Mac OSX What is the difference between /etc/hosts and /private/etc/hosts

They are the same file, /etc map to /private/etc

Date: 2019-08-11 View: 1200
How to edit hosts file on Mac OSX

Edit this file /private/etc/hosts.

Date: 2019-08-11 View: 1358
MongoDB Where is the log file?

Default, MongoDB creates the log file at this path /var/log/mongodb/mongodb.log, if the log file is not found, please check with the MongoDB config file.

Date: 2019-08-11 View: 1373
Gradle Could not find method compileOnly

Git clone a new project, Gradle build and hits the following error message :

Date: 2019-08-11 View: 1964
Oracle PL/SQL BITAND function example

The BITAND function treats its inputs and its output as vectors of bits, the output is the bitwise AND of the inputs.

Date: 2019-08-11 View: 1459
Oracle PL/SQL CREATE function example

This article will help you to understand how to create a user defined function. It’s also known as stored function or user function.

Date: 2019-08-11 View: 1228
Mac OSX where is default localhost folder?

On Mac OSX, the default localhost folder is located at /Library/WebServer/Documents

Date: 2019-08-11 View: 1304
Mac OSX Redirect .htaccess is not working ?

Here is the .htaccess file.

Date: 2019-08-11 View: 1473
Spring Boot + Hibernate Search example

Here we will create a Spring Boot web application example with Hibernate Search + Thymeleaf template engine, and deploy it as a WAR to Wildfly 10.1.

Date: 2019-08-11 View: 1611
PrimeFaces Open Window By Dropdown Selection

Technology: Primefaces it’s java based web framework to develop web applications using java. It’s one of the compliance frameworks for JSF, there are many other frameworks like omnifaces, richfaces. Primefaces has rich UI components.

Date: 2019-08-11 View: 1249