Useful tips for everyday
How do I pull a random sample in SQL? Random Sampling Within Groups using SQL Create a random row number for each user_id that resets…
How do I disable the internal keyboard on my MacBook Pro? Simply press Ctrl + F1 to disable your keyboard controls. CAN 2015 MacBook Pro…
Can I turn on my phone while charging? Yes, you can use your smartphone while charging. There is no danger in using your phone while…
What are modes of propagation? Hint: There are three types of modes of propagation of electromagnetic waves: Ground wave propagation, Space wave propagation and Skywave…
How can we increase performance of a Hibernate application? Find performance issues with Hibernate Statistics. Improve slow queries. Choose the right FetchType. Use query specific…
How can you tell if a product is new or refurbished? Look for a red or green lettering of “Refurbished” on a white background on…
What is distributed loading statics? Statics eBook: Introduction to Distributed Loads. In many static problems, applied loads are given as distributed force loads. This is…
How do you store sparse matrix? A sparse matrix can be stored in full-matrix storage mode or a packed storage mode. When a sparse matrix…
How can you improve the quality of a question? Open it up. If you want something more than a yes or no answer, take a…
What does open diamond mean in UML? aggregation It signifies aggregation. From wikipedia: In UML, it is graphically represented as a hollow diamond shape on…