SQL write command list all books with theme horror, list bid ( bookid) and total how many time has been reserved (borrowed
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write command
list all books with theme horror, list bid ( bookid) and total how many time has been reserved (borrowed)
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- If a column has high selectivity or cardinality, which index type is most appropriate?a. IOTb. B-treec. bitmapd. function-based indexReferring to the Set Operations image above - To validly perform a union, intersect, or difference operation, the columns in the Current Certificate and Expired Certificate tables must _________________ . Question 46 options: 1) have column names that are all exactly the same 2) all have non-null data values 3) have a related primary and foreign key 4) be union compatible with the same number of columns and matching data typesCreate LessonSchedule table with FK constraints in mysql database Two tables are created: Horse with columns: ID - integer, primary key RegisteredName - variable-length string Student with columns: ID - integer, primary key FirstName - variable-length string LastName - variable-length string Create the LessonSchedule table with columns: HorseID - integer with range 0 to 65 thousand, not NULL, partial primary key, foreign key references Horse(ID) StudentID - integer with range 0 to 65 thousand, foreign key references Student(ID) LessonDateTime - date/time, not NULL, partial primary key If a row is deleted from Horse, the rows with the same horse ID should be deleted from LessonSchedule automatically. If a row is deleted from Student, the same student IDs should be set to NULL in LessonSchedule automatically.
- 3.10 LAB - Update rows in Horse table The Horse table has the following columns: ID - integer, auto increment, primary key RegisteredName - variable-length string Breed - variable-length string, must be one of the following: Egyptian Arab, Holsteiner, Quarter Horse, Paint, Saddlebred Height - decimal number, must be ≥ 10.0 and ≤ 20.0 BirthDate - date, must be ≥ Jan 1, 2015 Make the following updates: Change the height to 15.6 for horse with ID 2. Change the registered name to Lady Luck and birth date to May 1, 2015 for horse with ID 4. Change every horse breed to NULL for horses born on or after December 22, 2016. 401682.2354678.qx3zqy7Create LessonSchedule table with FK constraints Two tables are created: Horse with columns: ID - integer, primary key RegisteredName - variable-length string Student with columns: ID - integer, primary key FirstName - variable-length string LastName - variable-length string Create the LessonSchedule table with columns: HorseID - integer with range 0 to 65 thousand, not NULL, partial primary key, foreign key references Horse(ID) StudentID - integer with range 0 to 65 thousand, foreign key references Student(ID) LessonDateTime - date/time, not NULL, partial primary key If a row is deleted from Horse, the rows with the same horse ID should be deleted from LessonSchedule automatically. If a row is deleted from Student, the same student IDs should be set to NULL in LessonSchedule automatically. Note: Table and column names are case sensitive in the auto-grader.Baseline requirement: Your search engine should be able to display the first n lines from a public dataset search for the first occurrence based on exact match search for all occurrences based on exact match search for all occurrences based on partial match (start, within, end) search based on your criteria (magic) This is to be done in Python
- MySQL CREATE TABLE students ( id INT PRIMARY KEY, first_name VARCHAR(50), last_name VARCHAR(50), age INT, major VARCHAR(50), faculty VARCHAR(50)); CREATE TABLE location ( id INT PRIMARY KEY, name VARCHAR(50), rooms INT); CREATE TABLE faculty ( id INT PRIMARY KEY, name VARCHAR(50), department_id INT); 4. Find the number of employees in each department who get no commission or have salary less than5000.5. Find the maximum salary of employees in each department that the employee was hired 15 yearsbefore now. *hint: user TIMESTAMPDIFF(<unit type>,<Date_value 1>,<Date_value 2>), the unitcan be YEAR, MONTH, DAY, HOUR, etc...6. Find the last name of all employees that were not hired on Tuesday *hint: (UseDATE_FORMAT() function amd the format you need is %W, also use UPPER()7. Find the number of employees in each department who have a manager.8. Find the number of employees for each manager whose employees' minimum salary is greaterthan 5000.9. Find the number of…Use the following quert to answer the question below it: SELECT *FROM HSP_ACCT_CVG_LISTLEFT OUTER JOIN CLARITY_EMPON COVERAGE.PAYOR_ID = CLARITY_EMP.PAYOR_IDLEFT OUTER JOIN COVERAGEON HSP_ACCT_CVG_LIST.COVERAGE_ID = COVERAGE.COVERAGE_ID Why does this query fail to run?12.3 LAB - Create LessonSchedule table with FK constraints Two tables are created: Horse with columns: ID - integer, primary key RegisteredName - variable-length string Student with columns: ID - integer, primary key FirstName - variable-length string LastName - variable-length string Create the LessonSchedule table with columns: HorseID - integer with range 0 to 65 thousand, not NULL, partial primary key, foreign key references Horse(ID) StudentID - integer with range 0 to 65 thousand, foreign key references Student(ID) LessonDateTime - date/time, not NULL, partial primary key If a row is deleted from Horse, the rows with the same horse ID should be deleted from LessonSchedule automatically. If a row is deleted from Student, the same student IDs should be set to NULL in LessonSchedule automatically.
- IN MYSQL 1. Write a query to create the “Student” table (SID, Sname, SAge, SDept, SCity), where the Student ID and Student Name cannot be NULL.2. Write a query to alter the above “Student” table, where a new column of Date of Birth (DOB) must be added, and it should not have any NULL values.3. Write a query to alter the “Student” table, where a CHECK constraint must be added to the “SCity” column and it must be “Vellore”.3.8 LAB - Create LessonSchedule table with FK constraints Two tables are created: Horse with columns: ID - integer, primary key RegisteredName - variable-length string Student with columns: ID - integer, primary key FirstName - variable-length string LastName - variable-length string Create the LessonSchedule table with columns: HorseID - integer with range 0 to 65 thousand, not NULL, partial primary key, foreign key references Horse(ID) StudentID - integer with range 0 to 65 thousand, foreign key references Student(ID) LessonDateTime - date/time, not NULL, partial primary key If a row is deleted from Horse, the rows with the same horse ID should be deleted from LessonSchedule automatically. If a row is deleted from Student, the same student IDs should be set to NULL in LessonSchedule automatically. Note: Table and column names are case sensitive in the auto-grader.Update rows in Horse table Using MYSQL The Horse table has the following columns: ID - integer, auto increment, primary key RegisteredName - variable-length string Breed - variable-length string, must be one of the following: Egyptian Arab, Holsteiner, Quarter Horse, Paint, Saddlebred Height - decimal number, must be ≥ 10.0 and ≤ 20.0 BirthDate - date, must be ≥ Jan 1, 2015 Make the following updates: Change the height to 15.6 for horse with ID 2. Change the registered name to Lady Luck and birth date to May 1, 2015 for horse with ID 4. Change every horse breed to NULL for horses born on or after December 22, 2016.