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How do I UPDATE from a SELECT in SQL Server?

To update data in SQL Server based on the results of a SELECT statement, you can use a common table expression (CTE) or a subquery. Here's an example of how you can accomplish this: Using a Common Table Expression (CTE):…

The Definitive C++ Book Guide and List

Here is a list of highly recommended C++ books that cover a range of topics and skill levels: "The C++ Programming Language" by Bjarne Stroustrup: Written by the creator of C++, this book provides an in-depth exploration of the language,…

Finding the index of an item in a list in python

In Python, you can find the index of an item in a list using the index() method or by iterating over the list manually. Here are examples of both approaches: Using the index() method: my_list = ['apple', 'banana', 'orange', 'grape']…

How to close/hide the Android soft keyboard programmatically?

To close or hide the soft keyboard programmatically in an Android application, you can use the following approaches: Using InputMethodManager: // Assuming you have a reference to the current activity InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); View view = this.getCurrentFocus(); if…

How to enumerate an enum in c++?

In C++, there is no built-in mechanism to directly enumerate the values of an enum like in Java. However, you can achieve similar functionality using some techniques. Here are two common approaches: Using a for loop with an integer counter:…

Change an HTML input’s placeholder color with CSS

To change the color of an HTML input's placeholder text using CSS, you can use the ::placeholder pseudo-element along with the color property. Here's an example: <input type="text" placeholder="Enter your name" class="my-input"> .my-input::placeholder { color: red; /* Set the desired…

How do I copy to the clipboard in JavaScript?

In JavaScript, you can copy text or data to the clipboard using the Clipboard API. Here's an example of how you can accomplish this: function copyToClipboard(text) { // Create a temporary textarea element const textarea = document.createElement('textarea'); textarea.value = text;…

How do I avoid checking for nulls in Java?

To avoid explicitly checking for null values in Java, you can utilize certain techniques and best practices. Here are a few approaches to consider: Use Optional: Java 8 introduced the Optional class, which provides a way to express the absence…

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