Your question: Can you sum a count in SQL?

Can we use sum and count together in SQL? SQL SUM() and COUNT() using variable SUM of values of a field or column of a SQL table, generated using SQL SUM() function can be stored in a variable or temporary column referred as alias. The same approach can be used with SQL COUNT() function too. …

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Frequent question: What is the best way to debug JavaScript?

How do I debug JavaScript? Debug JavaScript Step 1: Reproduce the bug. Step 2: Get familiar with the Sources panel UI. Step 3: Pause the code with a breakpoint. Step 4: Step through the code. Step 5: Set a line-of-code breakpoint. Step 6: Check variable values. Method 1: The Scope pane. Method 2: Watch Expressions. …

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What is the dividing symbol in Javascript?

What is the division symbol in JavaScript? A slash ( / ) is used to represent the division operator. What is the purpose module (%) operator in JavaScript? The modulo operator is represented by the % character in JavaScript. It returns the remainder of two integers that have been divided. As the remainder will always …

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How do I download and install Eclipse IDE for Java EE developers?

How do I use Eclipse IDE for Java EE developers? Download Eclipse IDE for Java EE Developers – 7.3 Development Environment Setup. Download Java Development Kit (JDK) Download Eclipse IDE for Java EE Developers. Download Tomcat 7.x (optional) Download Maven 3. Install Maven2Eclipse (m2e) Plugin (optional) Install soapUI Plugin (optional) Web Services. How do I …

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Is reflection good or bad Java?

Should I avoid reflection in Java? NO! Avoid using it, try to write a code without the Reflection. The worst you can do is if you introduce some generic mechanism with it – a custom validation framework or a flow engine where class and method names are stored as a String (in a text file …

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You asked: What is a MySQL server instance?

What is an instance on a server? An instance is a single copy of the software running on a single physical or virtual server. … When you run two copies of the software on two different physical or virtual servers, that also counts as two instances. How do I create an instance of MySQL server? …

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Which one is not supported by OOP in Java?

Which of the following is not supported by OOP? Which among the following doesn’t come under OOP concept? Explanation: Platform independence is not feature of OOP. C++ supports OOP but it’s not a platform independent language. Platform independence depends on programming language. Which OOPS concepts is not supported in Java? The correct answer to the …

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How can I add Java code in PHP?

Can we use Java code in PHP? The PHP/Java Bridge is an implementation of a streaming, XML-based network protocol, which can be used to connect a native script engine, for example PHP, Scheme or Python, with a Java or ECMA 335 virtual machine. How can I use Java and PHP together? Using the PHP/Java Bridge …

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Question: What is SQL mixed mode authentication?

Connect from SQL Server Management Studio Is SQL Server using mixed mode authentication? In this article Mixed mode enables both Windows Authentication and SQL Server Authentication. Windows Authentication is always available and cannot be disabled. What are the two types of authentication in SQL Server? SQL Server supports two authentication modes, Windows authentication mode and …

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How do you set a connection to keep alive in Java?

How do you make a connection stay alive in Java? Java code for Keep Alive Connection Example Connection Header Example. Connection: keep-alive. Keep-Alive header Example. Keep-Alive: timeout=5, max=100. Keep-Alive Connection Example. GET /echo HTTP/1.0 Host: reqbin.com Connection: keep-alive Keep-Alive: timeout=5, max=100. What does keep-alive header do? HTTP keep-alive, a.k.a., HTTP persistent connection, is an instruction …

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