Useful tips for everyday
What is the use of primary key in Oracle? In Oracle, a primary key is a single field or combination of fields that uniquely defines…
How do I find duplicates in SOQL query? Apex Code:- Set setOfDuplicateNames = new Set for (AggregateResult aggregate : [SELECT Name,count(id),AccountNumber FROM Account GROUP BY…
What is the ideal thrust to weight ratio? Acceptable Thrust to weight(rocket and installed motors) ratio: A minimum ratio of 5:1 is typically required. This…
How to update column based on filter of another column? UPDATE table SET col = new_value WHERE col = old_value; To expand on this, you…
How do you apply themes to an entire application? Setting the theme at the site level: to set the theme for the entire website you…
Is Linux security good? The general consensus among experts is that Linux is a highly secure OS – arguably the most secure OS by design.…
How do you use coalesce in a select statement? For example, as we know, the Coalesce function returns the first non-NULL values. SELECT COALESCE (expression1,…
How to know if a web server is compromised? Any evidence of suspicious shell commands, such as directory traversal, by the web server process. For…
How do you find out what iTunes payments are for? To view your iTunes invoices; Open iTunes on your computer or laptop. On the right…
How do I change the color of my foreground? Select the Eyedropper tool on the toolbox, and then click anywhere in the active document to…