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Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students?
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Given the following relational schemas Student (rollNo, name, age, se...
TRC Query to Obtain Department Names without Girl Students
To obtain the department names that do not have any girl students, we need to perform a TRC query on the given relational schemas. The steps to do this are as follows:
Step 1: Identify the relevant tables and columns
- We need to extract department names, so we will be using the Department table.
- We need to check if there are any girl students in a department, so we will be using the Student table and filtering on the 'sex' column.
Step 2: Write the TRC query
- We can use a subquery to get the count of girl students in each department.
- We can then use a WHERE clause to filter out departments where the count is greater than zero.
- Finally, we can select the department name from the Department table.
The TRC query will look like this:
SELECT dName FROM Department
WHERE deptId NOT IN (SELECT deptNo FROM Student WHERE sex='F' GROUP BY deptNo)
Step 3: Explanation of the query
- The subquery selects the department numbers of all girl students, groups them by department number, and returns the count of girl students in each department.
- The outer query selects the department names of all departments whose department numbers are not in the list of departments with girl students.
Step 4: Conclusion
- This TRC query will return the department names that do not have any girl students.
To obtain the department names that do not have any girl students, we need to perform a TRC query on the given relational schemas. The steps to do this are as follows:
Step 1: Identify the relevant tables and columns
- We need to extract department names, so we will be using the Department table.
- We need to check if there are any girl students in a department, so we will be using the Student table and filtering on the 'sex' column.
Step 2: Write the TRC query
- We can use a subquery to get the count of girl students in each department.
- We can then use a WHERE clause to filter out departments where the count is greater than zero.
- Finally, we can select the department name from the Department table.
The TRC query will look like this:
SELECT dName FROM Department
WHERE deptId NOT IN (SELECT deptNo FROM Student WHERE sex='F' GROUP BY deptNo)
Step 3: Explanation of the query
- The subquery selects the department numbers of all girl students, groups them by department number, and returns the count of girl students in each department.
- The outer query selects the department names of all departments whose department numbers are not in the list of departments with girl students.
Step 4: Conclusion
- This TRC query will return the department names that do not have any girl students.
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Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students?
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Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students?.
Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given the following relational schemas Student (rollNo, name, age, sex, deptNo, advisor) Department (deptId, dName, hod, phoneNo) Which of the following will be the TRC query to obtain the department names that do not have any girl students?.
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