SelectALL: what do we call a column in the dataset? Attribute independent variable v Feature
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SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
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- Assignment Two: We will write three procedures on our tables, the first of which I have provided as an example. proclnsertPlayer takes one IN VARCHAR(16) paramater and returns an error code in the second SMALLINT (INOUT) parameter. The procedure checks the parameter and, if there are no errors, inserts the value into tblPlayers. Documentation of errors Condition Error code No errors 1st param Null or zero len playerID taken 1 proclnsertGame will receive two IN VARCHAR(16) interpreted asLAB - Select horses with logical operators The Horse table has the following columns: • ID integer, primary key • RegisteredName - variable-length string • Breed - variable-length string • Height-decimal number • BirthDate - date Write a SELECT statement to select the registered name, height, and birth date for only horses that have a height between 15.0 and 16.0 (inclusive) or have a birth date on or after January 1, 2020.Range controls and null value controls may improve or hinder data integrity.
- The Driver Relationship team realized that maintaining driver IDs is difficult and requested an automatic way of incrementing the value when a new driver is added. You need to make the changes on the table to automatically increment the Driver ID. After the change, you need to insert the following driver: First Name: Nursin Last Name: Yilmaz Driving License ID: 4141447 Start Date: 2019-12-28 Driving License Checked: True Rating: 4.0 THIS IS IN SQL FORMAT FOR CENGAGE MINDTAP, PLEASE HELP I AM STUCKThe database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule with the lesson date/time, horse ID, and the student's first and last names. Order the results in ascending order by lesson date/time, then by horse ID. Unassigned lesson times (student ID is NULL) should not appear in the schedule. Hint: Perform a join on the Student and LessonSchedule tables, matching the student IDsComputer Science please please any help ASAP Query #5: Code a query that will make use of SQL Server intrinsic functions and reference the Instructors table. Must have alias names for each column. First column: Display the instructors name as first name initial followed by a period and space and then last name such as B. Brown Second column: Display the year only for the hire date. Third column: Difference in months between today’s date and the hire date. Last column: Display the string literal ‘Full-time instructor’ if an instructor has a Status of F or return the string literal of ‘Adjunct instructor’ if they have a status of P. You can use the Case function or the IIF function.
- The database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule with the lesson date/time, horse ID, and the student's first and last names. Order the results in ascending order by lesson date/time, then by horse ID. Unassigned lesson times (student ID is NULL) should not appear in the schedule.The Save Transaction button depicted in the screen attached is used to save relevant data to the sales table and the salesdetails tables from the depicted schema. When this button is clicked it calls the saveTransaction() function that is within the PosDAO class, it passes to this function an ArrayList of salesdetails object, this list contains the data entered into the jTable which is the products and qty being sold.Write the saveTransaction function. You are to loop through the items and get the total sales, next you are to insert the current date and the total sales into the sales table. Reminder that the sales table SalesNumber field is set to AUTO-INCREMENT, hence the reason for only entering the total sales and current date in sales table.DataBaseMid2021-2.doc [Compatibility Mode] - Word Sign in Table Tools File Home Insert Design Layout References Mailings Review View Help Design Layout O Tell me what you want to do 요 Share SECOND OUENIVAR The following Data Base shows some sample data values for an extended form of the Zoo and Visitors. The significance of Visiting row is that the Visitor visits a specified Zoo in a specified date. Zoo : Zno zi Visitors : City Gaza Nusirat Yno Name Address Age V1 Fuad Gaza 55 Z2 V2 Rami Gaza 20 Z3 Gaza V3 Ahmed Nusirat 31 V4 Ahmed Gaza 45 V5 Ali Rafa 20 Visiting: Vno Zno Z1 Date V2 11-11-1998 15-10-1999 V1 Z3 11-01-2003 11-01-2003 06-03-1997 V2 Z2 V2 Z3 V1 Z2 V3 Z1 06-031997 V3 Z3 11-11-2005 V4 Z3 11-11-2005 V2 Z2 12-12-2005 Given the following relational Algebra querya Visitors Þyisitora.Nno = Visiting.VnolIIxna.Znal Visiting) A IIzag [8 City = “Caza' ( Zoo)]1 A- Find the result relation of the above query B What was the request of the relational algebra query above (make a query…