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- 1. Get the actors
- 2. Get the languages list
- 3. Get list of actors names
- 4. Search by pattern
- 5. Get the ordered list of languages
- 6. Get the sorted list of films with limit
- 7. Find stuff members by condition
- 8. Get the sorted list of films with condition
- 9. Find film names by description
- 10. Find the actors by name
- 11. Find the average length of a movie
- 12. Find foreign employees
- 13. Get an ordered list of movies
- 14. Get a list of movies sorted by multiple fields
- 15. Find clients starting with the letter "A"
- 16. Find clients starting with the letter "A" (2)
- 17. Find the minimal and maximal film rental cost
- 18. Get the first 10 movies in alphabetical order
- 19. Find long movies
- 20. Find the distribution of customer activity
- 21. Find employees by hire date
- 22. Calculate the area of a circle
- 23. Calculate circle perimeter
- 24. Find active customers
- 25. Find movies with above-average rental rates
- 26. Find movies with the highest replacement cost
- 27. Get list of clients
- 28. Get a list of movie ratings
- 29. Get list of tables
- 30. Get table columns data
- 31. Get list of indexes
- 32. Get the restricted films list
- 33. Get list of restricted films
- 34. Find adult only films about Database Administrator
- 35. Create new address record
- 36. Update the postal code
- 37. Remove customer records
- 38. Find addresses without postal code
- 39. Find an addresses with even postal codes
- 40. Build shared surnames list
- 41. Get airports data
- 42. Find long-range aircraft
- 43. Find the palindrome names
- 44. What is SQL?
- 45. What is DBMS?
- 46. What is RDBMS?
- 47. What is a Database?
- 48. What is ACID?
- 49. SQL tables joins types
- 50. Choose join type
- 51. Perform price update
- 52. Update customer's address
- 53. Adjust the rental cost
- 54. Update replacement cost
- 55. Find the tomorrow date
- 56. Find the first and last dates of month
- 57. Order of execution of logical operators
- 58. Difference between UNION and UNION ALL
- 59. Display a list of departments
- 60. Find employees by department
- 61. Find employee salary
- 62. Find employees with high salaries
- 63. Find employees with a salary above average
- 64. Find customers with even numbers
- 65. Find customers by phone prefix
- 66. Get unique customers list
- 67. How avoid accidental deletion?
- 68. What relation types exists in SQL?
- 69. Find non-Dollar/Euro countries
- 70. Jobs without specific requirements
- 71. Update project information
- 72. What is a subquery?
- 73. Product List
- 74. Filtered list of products
- 75. Ten heaviest products
- 76. Find the median booking amount
- 77. Sort the penguins
- 78. Distribution penguins by islands
- 79. Find small penguins
- 80. Find small penguins species
- 81. Flipper length to body mass rate
- 82. Penguins whose sex is unknown
- 83. Heavy chinstrap penguins
- 84. Penguins and Islands
- 85. Island with the minimum penguins mass
- 1. Find customers full names
- 2. Find addresses using sub-query
- 3. Find addresses using JOIN
- 4. Find duplicate actor names
- 5. Find the most popular surname among actors
- 6. Find all the actors in the film
- 7. Find all films of an actor
- 8. Find the distribution of films by category
- 9. Find the average length of a movie by category
- 10. Find the number of films in which the actor took part
- 11. Analyze monthly payment
- 12. Find the best month
- 13. Find the most popular film
- 14. Analyze rental data for film
- 15. Find the department
- 16. Find employees works on the project
- 17. Find all customers with unshipped orders
- 18. Get the longest movie
- 19. Get films list third page
- 20. Find the films never been rented
- 21. Find customers who did not return rented discs
- 22. Find average daily film rentals
- 23. Calculate daily income for the month
- 24. Generate dates table
- 25. Calculate the number of days off in a month
- 26. The average cost of renting a movie by category
- 27. Average film rental duration for each customer
- 28. Find long comedies
- 29. Find company stores details
- 30. Find clients who rented the film
- 31. Find minimum, maximum and average film duration
- 32. Find long movie categories
- 33. Find the number of employees
- 34. Find movie distribution by store
- 35. Find highly paid employees
- 36. Get list of highly paid employees
- 37. Find valuable employees
- 38. Find the salary ratio
- 39. Find the average client activity time
- 40. Find the average revenue
- 41. Find the store average revenue
- 42. Create a salary rating
- 43. Quarterly earnings analysis
- 44. Find the countries with the most customers
- 45. Find customer details
- 46. Find the count of rented disks
- 47. Find the number of returns
- 48. Find the least popular movies
- 49. Find the top spending customers
- 50. Find films with no available inventory
- 51. Find languages not represented in films
- 52. Find movies that have never been rented
- 53. Find clients with a high number of rentals
- 54. Find movies with the highest replacement cost
- 55. Count the rental delays
- 56. Calculate the percentage of delays
- 57. Extract address and domain from email
- 58. Get a list of actors - namesakes
- 59. Get a list of movies and their categories
- 60. Find film average rental time
- 61. Find movies with rental time below average
- 62. Movie rental prices by category
- 63. Get rolling payment amounts
- 64. Find the number of films in each category
- 65. Analyze customer payments
- 66. Find the most diverse clients
- 67. Find film distribution
- 68. Find films that were out of stock
- 69. Payments analyze
- 70. Distribution of clients by weekday
- 71. Find the distribution of clients by time of day
- 72. Improve distribution of clients by weekday
- 73. Movies without actors records
- 74. Movies without cast records
- 75. Find all actors never starred in adult only films
- 76. Analyze weekly rentals
- 77. Average rentals count
- 78. Find the distribution of clients by country
- 79. Find never been delayed films
- 80. Find most delayed films
- 81. Create department table
- 82. Find films about Dogs or Cats
- 83. Clients whose first name is the last name of another client
- 84. Update Canadian postal codes
- 85. Enter Woodridge postal code
- 86. Enter new staff record
- 87. Create customer addresses view
- 88. Distribution of films by categories in JSON format
- 89. Generate a list of movies in JSON format
- 90. Category popularity analysis
- 91. Build a overal email list
- 92. Select clients without the letter "A"
- 93. Alter the staff table
- 94. Find films in several categories
- 95. Get a list of airports
- 96. Find Boeing aircraft
- 97. Get flights departed from Domodedovo
- 98. Get a list of aircraft from Domodedovo
- 99. Aircraft usage analysis
- 100. Find last names with double letters
- 101. Customers with matching name initials
- 102. Output a list of customer names
- 103. Find the aircraft without Business class
- 104. Get counts of seats by class
- 105. Get rows and seats count
- 106. Calculate the number of seats on flight
- 107. Get the list of destination airports
- 108. Get a list of airports with direct connections
- 109. Get a list of no-show passengers
- 110. Get a list of passengers
- 111. Find the flight delay
- 112. Get flights statistics
- 113. Rate airports
- 114. Find a list of flight options
- 115. Find the fastest flight
- 116. Calculate the daily number of flights
- 117. Obtain a list of passengers
- 118. Get list of tables
- 119. Get information about the columns
- 120. Airports with one-way departures
- 121. Find airports relations
- 122. Find small airports
- 123. Get the passenger list
- 124. Get aircraft seat map
- 125. Get a list of planes in the air
- 126. What are DQL commands?
- 127. What are DML commands?
- 128. How is data structured in a relational database?
- 129. What is index in SQL?
- 130. Choose tables join type
- 131. Calculate the tax
- 132. Get formatted list of films
- 133. What is a primary key?
- 134. Find the first and last dates of week
- 135. Display a table of airports
- 136. Count departing passengers
- 137. Number of passengers with total
- 138. Display a table of departures
- 139. Get a list of airports with more than one direct flight
- 140. Get list of tables (PostgreSQL)
- 141. Show a sub-departments list (JOIN)
- 142. Get a list of sub-departments
- 143. Get list of tables (SQL Server)
- 144. Find duplicate phone numbers
- 145. What is a view in SQL?
- 146. Find a February 2006 hit
- 147. Get product category color counts
- 148. Analysis of the cost of film rental by category
- 149. Find films to share
- 150. How to find common rows in SQL?
- 151. Orders shipped in the following month
- 152. Top states by population
- 153. Reduced salaries
- 154. List of categories
- 155. List of subcategories
- 156. What is a SQL transaction?
- 157. What is normalization in SQL?
- 158. What is a correlated subquery?
- 159. Create a phonebook
- 160. Staff availability report
- 161. What is "PIVOT" in SQL?
- 162. Film distribution by category and store
- 163. Root categories list
- 164. Determine the type of relationship
- 165. Find highly paid employees
- 166. Find the median salary
- 167. Find the hypotenuse of a triangle
- 168. Find the median film's length
- 169. Prepare mailing list
- 170. Find light weight penguins
- 171. Penguins list
- 172. Daily income by source
- 173. Penguins with absent data
- 174. Count the penguins
- 175. Index usage
- 176. Using a covering index
- 1. Find actors more popular than HENRY BERRY
- 2. Find most active customers
- 3. Find sad actors
- 4. Find the most diverse actors
- 5. Find all films where HENRY BERRY did not participate
- 6. Calculate factorial
- 7. Find average disk idle time
- 8. Find the distribution by categories
- 9. Analyze monthly payments (2)
- 10. Find movie popularity rating
- 11. Find EMILY DEE fans
- 12. Clients who are not familiar with EMILY DEE films
- 13. Disc rental and return statistics
- 14. Get movie cast lists
- 15. Find acting duets
- 16. Improve payments analyze
- 17. Find all the actors in the film
- 18. Find repeat rentals
- 19. Find the Horror films fans
- 20. Find clients who have met each other
- 21. Find movies available in one store only
- 22. Find movies with no available copies
- 23. Staff performance analysis
- 24. Generate monthly bill
- 25. Gap & Islands problem
- 26. Find customers who sow same films
- 27. Get a list of airports without direct connections
- 28. Find rented films
- 29. Find average flight occupancy
- 30. Find flight occupancy by fare
- 31. FInd the plane coordinates
- 32. FInd the planes coordinates
- 33. What is a subset of the SQL language?
- 34. What are DDL commands?
- 35. What is a constraint in SQL?
- 36. SQL constraints types
- 37. SQL set operators
- 38. What is a covering index?
- 39. Move film between categories
- 40. Find a 2005 hits
- 41. What is a materialized view?
- 42. Distribution of flights by days of the week
- 43. Subcategories count
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Find all records about the penguins where at least one of column does not have a value.
Use SQLite syntax to write your answer. Descriptions of tables are provided in the right pane.
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Querynomicon (SQLite)
A compact database for learning the basics of SQL.The Querynomicon database contains tables:
little_penguins - table of little penguins.
- speciesPenguin species.
- islandIsland of residence.
- bill_length_mmBill length, mm.
- bill_depth_mmBill depth, mm.
- flipper_length_mmFlipper length, mm.
- body_mass_gBody mass, g.
- sexSex.
| species | island | bill_length_mm | bill_depth_mm | flipper_length_mm | body_mass_g | sex |
|---|---|---|---|---|---|---|
| Gentoo | Biscoe | 52.1 | 17 | 230 | 5550 | MALE |
penguins - table of penguins.
- speciesPenguin species.
- islandIsland of residence.
- bill_length_mmBill length, mm.
- bill_depth_mmBill depth, mm.
- flipper_length_mmFlipper length, mm.
- body_mass_gBody mass, g.
- sexSex.
| species | island | bill_length_mm | bill_depth_mm | flipper_length_mm | body_mass_g | sex |
|---|---|---|---|---|---|---|
| Gentoo | Biscoe | 52.1 | 17 | 230 | 5550 | MALE |
staff - table of employees.
- identEmployee number.
- personalEmployee first name.
- familyEmployee last name.
- deptDepartment.
- ageAge.
| ident | personal | family | dept | age |
|---|---|---|---|---|
| 7 | Abram | Chokshi | gen | 23 |