You want to name a CHECK constraint on the Age column in the Employees table to ensure age is at least 18. Which is the best constraint name following conventions?

hard📝 schema Q8 of 15

SQL - Table Constraints

You want to name a CHECK constraint on the Age column in the Employees table to ensure age is at least 18. Which is the best constraint name following conventions?

ACK_Employees_Age_Min18

BCheckAge

CEmployeesAgeCheck

DAgeCheckConstraint

Step-by-Step Solution

Solution:

Step 1: Understand naming conventions for CHECK constraints
CHECK constraints often start with CK, followed by table and column names, and optionally a description.
Step 2: Evaluate options for clarity and convention
CK_Employees_Age_Min18 follows the CK prefix, table name, column name, and describes the rule clearly.
Final Answer:
CK_Employees_Age_Min18 -> Option A
Quick Check:
CK prefix + table + column + rule = A [OK]

Quick Trick: Use CK prefix for check constraints [OK]

Common Mistakes:

MISTAKES

Using vague or generic names
Ignoring prefix conventions
Not including table or column names

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More SQL Quizzes

You want to name a CHECK constraint on the Age column in the Employees table to ensure age is at least 18. Which is the best constraint name following conventions?

Step 1: Understand naming conventions for CHECK constraints

Step 2: Evaluate options for clarity and convention

Final Answer:

Quick Check:

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