Web Programming Encyclopedia
How do I view all records in SQL? SELECT Syntax SELECT column1, column2, … FROM table_name; SELECT * FROM table_name; Example. SELECT CustomerName, City FROM Customers; Example. SELECT * FROM Customers; How do I fetch all records in SQL Developer? There’s no setting to fetch all records. You wouldn’t like SQL Developer to fetch for …
How do you continue a loop in SQL? The CONTINUE statement terminates the current iteration of a loop within a PL/SQL code block, and moves to the next iteration of the loop. Invocation. This statement can be embedded within a FOR, LOOP, or WHILE statement, or within a PL/SQL procedure, function, or anonymous block statement. …
What was JavaScript originally created for? So JavaScript was conceived as a scripting language for the Web for both client and server side. It was then quickly re-positioned as a Web “companion” for Java. Why did Netscape make JavaScript? To expand and further develop the WWW Netscape Communications Corporation created JavaScript (at that time called …
Can one interface extend multiple interface? Answer is: Yes. An interface may be declared to be a direct extension of one or more other interfaces, meaning that it implicitly specifies all the member types, abstract methods, and constants of the interfaces it extends, except for any member types and constants that it may hide. Can …
Should I learn Python or Java first? If you’re just interested in programming and want to dip your feet in without going all the way, learn Python for its easier to learn syntax. If you plan to pursue computer science/engineering, I would recommend Java first because it helps you understand the inner workings of programming …
Can we increase session time in PHP? If you use PHP’s default session handling, the only way to reliably change the session duration in all platforms is to change php. ini. That’s because in some platforms, garbage collection is implemented through a script that runs every certain time (a cron script) that reads directly from …
What is an SQL domain? An SQL Domain is a named, user-defined set of valid values. … The name of the Character set that the Domain’s set of values must belong to (for character string types). The name of the Domain’s default Collation. What is a domain in database? A simple definition of a database …
How do you check if a string is a JSON? In order to check the validity of a string whether it is a JSON string or not, We’re using the JSON. parse()method with few variations. This method parses a JSON string, constructs the JavaScript value or object specified by the string. How check string is …
Which Java version is LTS? Regarding Oracle Java SE Support Roadmap, version 17, 11 and 8 are the currently supported long-term support (LTS) versions, where Oracle Customers will receive Oracle Premier Support. Is Java 15 an LTS? Java 15 will be released in September 2020. It is not an LTS release and will be obsoleted …
How do you update JavaScript? To perform a JavaScript update: Select Navigate, then Impact Manager, and then JavaScript Update. Control Mode is displayed. Is JavaScript necessary on my computer? JavaScript is enabled in your web browser. … A lot of websites use Javascript as a part of their core functionality, and if you browse the …