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2 weeks ago
What is DECLARE command in SQL?
Contents
- What is DECLARE in database?
- How do you DECLARE a statement?
- What is the difference between set and DECLARE in SQL?
- How do you DECLARE a function in SQL?
What is DECLARE in database?
Declares the name of a database.
How do you DECLARE a statement?
Use the DECLARE statement to define a variable, the data type of the variable and, optionally, its initial value. You can define three types of variable with the DECLARE statement: External. Normal.
What is the difference between set and DECLARE in SQL?
When you declare it you declare the variable name, the type, and a default value, which could be an expression. SET is for initializing the variable you declared previously, and you cannot SET the variable until you DECLARE it.
How do you DECLARE a function in SQL?
Procedure1Specify a name for the function.2Specify a name and data type for each input parameter.3Specify the RETURNS keyword and the data type of the scalar return value.4Specify the BEGIN keyword to introduce the function-body. ... 5Specify the function body. ... 6Specify the END keyword.
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