A "Read" operation occurs when a computer program reads information from a computer file/table (e.g. to be displayed on a screen). The "read" operation gets information out of a file (some computer languages use the term "get" instead of "read"). After a "read", the information from the file/table is available to the computer program but none of the information that was read from the file/table is changed in any way.
A "Write" operation occurs when a computer program adds new information, or changes existing information in a computer file/table.
An example of a computer program adding new information to a file would be when a company adds a new hire's details into its employee master file.
An example of a computer program changing existing information would be when a company updates its employee master file if an existing employee changes their address. In this example, since the employee already existed in the employee file, the computer program would have had to perform a "read" at some point, to get the information out of the file/table (a fundamental rule of computer programming is that you can't update a record in a file/table unless you perform a "read" operation to get a hold of that record in the first place).
Either way, the "Write" operation is what puts information in to a file. Some computer languages use the terms "put" or "update", but these are both "write" operations in general IT terms.
Bottom line: Read = get information. Write = add or change information.
HTH
Chat with our AI personalities
Alright, sweetheart, let me break it down for you. In computer programming, "read" means fetching data from a storage location, like reading a book. On the other hand, "write" means storing data to a location, like jotting down notes. So, in a nutshell, reading is like taking in information, while writing is like spitting it back out. Hope that clears things up for you, hun.
A programming language is a symbolic language that a computer programmer uses to write computer program source code. Source code is non-executable code and must be translated into machine code. A computer can be programmed to perform this conversion and thus produce the required machine code.
SQL which stands for Structured Query Language The term you are looking for is programming language.
write a note on event driven programming
There are so many programming languages that it is impossible to tell without actually seeing the source program in question.
Software development is the process of designing and writing code for computer operating systems, smartphone or computer apps, and non-PC devices. The programming language that a software developer uses depends on the task. System Programming: Systems programmers design and write system software.