1, Add a check constraint to the customer table’s TypeId column to ensure the letters A through Z (case-insensitive) are

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1, Add a check constraint to the customer table’s TypeId column
to ensure the letters A through Z (case-insensitive) are the only
acceptable values for each of the characters in the column.
2.Add a check constraint to the Type id table’s Id column for
the values FIC, FED, and REF.