It can be used to compare two values. If you use double equal sign(==) in MySQL, you will get an error message. Now, compare the above variable value with 10. If both the values are same then the result will be 1 otherwise 0. What does == do in SQL? It can be used to compare two values. If you …
SQLSTATE is a code which identifies SQL error conditions. It composed by five characters, which can be numbers or uppercase ASCII letters. An SQLSTATE value consists of a class (first two characters) and a subclass (last three characters). There are three important standard classes. What is Sqlstate in DB2? SQLSTATE values are returned to the application in the last five …
LPAD() function in MySQL is used to pad or add a string to the left side of the original string. The actual string which is to be padded. If the length of the original string is larger than the len parameter, this function removes the overfloating characters from string. What is the use of Lpad in SQL? Definition and Usage …
We will look at three situations, using database exception handling options to manage errors in different ways: On the first error, roll back all changes and stop mapping execution. Roll back only the transaction with the error and continue. Roll back the top transaction and continue. How do you handle DB errors? We will look at three situations, using database …
Depending on the refresh rate of the monitor, there may be a noticeable input lag when it comes to moving a cursor or performing actions on the screen. This input lag can be enough to impact things such as games, but this may also be based on the particular model of television rather than all 4K TVs. What are the …
An asterisk is a star-shaped symbol (*) that has a few uses in writing. It is most commonly used to signal a footnote, but it is sometimes also used to clarify a statement or to censor inappropriate language. What is the meaning of symbol * used after? An asterisk is a star-shaped symbol (*) that has a few uses in …
Backlight Problems Some TV displays, such as LCD screens, use a backlight to illuminate the picture. If the backlight burns out or stops working, it will result in a blank TV screen. To check your TV’s backlight, make sure your TV is on. Then, turn off the lights in the room and shine a flashlight on the screen. How do …
Yes! Monitors are designed with the CCFL backlight that becomes dimmer over time. However, it is a slow process and may take a number of years if you properly use your monitor. How long do monitors usually last? How often should monitors be replaced? There is no definite period you are supposed to replace your computer monitor. However, computer monitors …
The main differentiating aspect of a gaming monitor is its high refresh rate. These monitors are enabled with features such as free sync or g-sync, with helps with frame rates. They have high quality display, with high contrast, this makes it more expensive. Are cheap 144Hz monitors worth it? Answer: If you’re playing competitive games, a 144Hz gaming monitor is …
Early OLED TVs did have trouble with this phenomenon, throwing the technology into question. But these days, nearly all of the OLED TVs on the market today are equipped with preventative measures to curb burn-in, and unless you’re a very particular type of television viewer, you needn’t worry about it at all. How common is LG OLED burn-in? It is …