01. Macro definition contains a set of instruction to support modular programming . Procedure contains a set of instructions which can be called repetitively which can perform a specific task.
What is the difference between a subroutine procedure and a macro?
Any logic may use both macros and subroutines. The main difference is in the way they are used . Only subroutines can be used when you need to pass arguments, get a return value, or activate the independent execution of logic. Only macros can be used when defining run-time interface parameters.
What is the difference between macro and procedure in Teradata?
The macro contains only SQL and maybe dot commands that are only for use in BTEQ. Normally a SELECT results in rows being returned to the user. A stored procedure does not return rows to the user like a macro . ... A stored procedure contains SQL to access data from within Teradata.
What is a procedure in microprocessor?
Procedure and Macro (16 marks)
Define procedure : A procedure is group of instructions that usually performs one task . It is a reusable. section of a software program which is stored in memory once but can be used as often as necessary.
What is a procedure in assembly language?
Procedures or subroutines are very important in assembly language, as the assembly language programs tend to be large in size. Procedures are identified by a name. Following this name, the body of the procedure is described which performs a well-defined job . End of the procedure is indicated by a return statement.
What is a macro Teradata?
A macro consists of one or more statements that can be executed by performing a single statement . Each time the macro is performed, one or more rows of data can be returned. A frequently used SQL statement or series of statements can be incorporated into a macro and defined using the SQL CREATE MACRO statement.
How do I create a macro in SQL Server?
There are three ways to define a SQL macro. If the current statement in the editor should be defined as a macro, select (highlight) the statement’s text and select Macros → Add SQL macro from the main menu . You will be prompted to supply a name for the new macro.
What is an example of a macro?
Macro is defined as something that covers a large amount, or is large in size. An example of macro is the study of the key driving aspects of an economy ; macro economics. An example of macro is a very close up photograph of an ant; a macro photograph.
Are macros subroutines?
A subroutine is a series of statements that performs a specific task. Subroutines are also known as Procedures or Macros.
What is macro explain?
A macro is an automated input sequence that imitates keystrokes or mouse actions . A macro is typically used to replace a repetitive series of keyboard and mouse actions and used often in spreadsheets and word processing applications like MS Excel and MS Word. The file extension of a macro is commonly .
Why is it called a microprocessor?
It is so called because this device comprises of transistors which are small in size (micro-meter) . ... It has also used to denote something very small like a very small processor or microprocessor.
What are the advantages of using procedure?
- Know what you have to do. ...
- Access information to quickly solve problems and reduce downtime. ...
- Easily onboard new employees. ...
- Be in compliance with norms/certifications. ...
- Improve quality. ...
- Make sure everyone is on the same page. ...
- Reduce risk & improve security. ...
- Improve.
What are macros in microprocessor?
A Macro is a set of instructions grouped under a single unit . It is another method for implementing modular programming in the 8086 microprocessors (The first one was using Procedures).
How does assembly function work?
In assembly language, the call instruction handles passing the return address for you , and ret handles using that address to return back to where you called the function from. The return value is the main method of transferring data back to the main program.
Why do we use procedures in assembly language?
Why Are Procedures Important? You need them to do input-output in assembly language. Procedures help you gain major insight into how the runtime stack is used . Your programs will grow to the point where you either divide them into procedures or you never understand the whole program.
How does push work in assembly?
The push instruction places its operand onto the top of the hardware supported stack in memory . Specifically, push first decrements ESP by 4, then places its operand into the contents of the 32-bit location at address [ESP].
