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Can you have a switch statement within a switch statement?
It is possible to have a switch as part of the statement sequence of an outer switch. Even if the case constants of the inner and outer switch contain common values, no conflicts will arise.
Can a switch statement be empty?
The statement list for a case can also be empty, which simply passes control into the statement list for the next case. Note: Multiple default cases will raise a E_COMPILE_ERROR error.
Can we use if in switch case?
A switch statement is usually more efficient than a set of nested ifs. Deciding whether to use if-then-else statements or a switch statement is based on readability and the expression that the statement is testing. Prefer switch if the number of cases are more than 5 otherwise, you may use if-else too.
How to do switch statement inside switch statement?
Use Polymorphism if possible. This would make your code a lot cleaner. I would call a function and pass in the aditional cases and in the function do a switch case on them. Makes cleaner code. Another method I often use is indeed nested if’s
When to use the default case in a switch statement?
A switch statement can have an optional default case, which must appear at the end of the switch. The default case can be used for performing a task when none of the cases is true. No break is needed in the default case. Nested-Switch statements refers to Switch statements inside of another Switch Statements.
How does a nested switch work in Excel?
Each case is followed by the value to be compared to and after that a colon. When the variable being switched on is equal to a case, the statements following that case will execute until a break statement is reached.
When to use switch statement in T-SQL?
Also, in some cases we may have multiple hits in a switch statement, such as the above filter in code – note that order matters in that I first want to find temp table creation before focusing on where clauses. A T-SQL script may have both. In my own view, switch statements are cleaner when there are many possibilities.