Create a relational model with foreign and primary keys
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Create a relational model with foreign and primary keys
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- INSTRUCTIONS Using spreadsheet software enter the following table below that shows thenumber of tourists visiting the following countries over a five-year period. UseTimes New Roman and Font size 12. Name the worksheet Table. COUNTRIEsS 2014 2015 2016 2017 2018‘000 ‘000 ‘000 ‘000 ‘000Grenada 350 465 375 250 485Antigua andBarbuda 153 160 155 149 256Barbados 573 625 725 680 740St. Kitts 347 515 538 178 384St. Lucia 600 436 368 535 858Trinidad andTobago 379 563 475 415 563Jamaica 416 200 500 300 475Bahamas 300 450 550 460 470Aruba 208 367 415 500 684Dominica 135 317 279 350 465 Insert a column to the right of the table with the heading “Total Visitors”. Inthat same column compute the total number of tourists that visited eachcountry over the years. Insert a row heading Maximum to show the maximum number of visitors foreach given year. Sort the data in ascending order based on the Countries. Insert a row heading Minimum to show the minimum number of visitors foreach given year. …Following script is given to you at Google Classroom. Run script to generate tables inOracle APEX. EMP (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)DEPT (DEPTNO, DNAME, LOC)SALGRADE (GRADE, LOSAL, HISAL)A semaphore currently has the value 3. A process that attempts to subtract 4 from this semaphore will?
- Using PHP Write a program using PHP programming language that reads the user name and password from a login form Login.html Login.php And then stores them in a table named: users in these fields: U_name, U_Pwd using phpMyadmin database.The following table shows a list of pets and their owners that is used by a veterinarian service. P_Name Type Breed DOB Owner O_Phone O_E-mail Kino Dog Std. Poodle 3/27/97 M. Downs 5551236 md@abc.com Teddy Cat Chartraux 4/2/98 M. Downs 1232343 md@abc.com Filo Dog Std. Poodle 2/24/02 R. James 2343454 rj@abc.com AJ Dog Collie Mix 11/12/95 Liz Frier 3456567 liz@abc.com Cedro Cat Unknown 12/10/96 R.James 7865432 rj@abc.com Woolley Cat Unknown 10/2/00 M. Trent 9870678 mt@abc.com Buster Dog Collie 4/4/01 Ronny 4565433 ron@abc.com a. Describe 4 problems that are likely to occur when using this table. b. Break the table into two tables in a way that fixes the four problems.Python > Pandas. How to convert a timestamp column (UNIX seconds) in a dataframe to a datetime object (also change the name of the column accordingly)
- # Begin constantsCOLUMN_ID = 0COLUMN_NAME = 1COLUMN_HIGHWAY = 2COLUMN_LAT = 3COLUMN_LON = 4COLUMN_YEAR_BUILT = 5COLUMN_LAST_MAJOR_REHAB = 6COLUMN_LAST_MINOR_REHAB = 7COLUMN_NUM_SPANS = 8COLUMN_SPAN_DETAILS = 9COLUMN_DECK_LENGTH = 10COLUMN_LAST_INSPECTED = 11COLUMN_BCI = 12 INDEX_BCI_YEARS = 0INDEX_BCI_SCORES = 1MISSING_BCI = -1.0 EARTH_RADIUS = 6371 # Sample data for docstring examplesdef create_example_bridge_1() -> list:"""Return a bridge in our list-format to use for doctest examples. This bridge is the same as the bridge from row 3 of the dataset.""" return [1, 'Highway 24 Underpass at Highway 403','403', 43.167233, -80.275567, '1965', '2014', '2009', 4,[12.0, 19.0, 21.0, 12.0], 65.0, '04/13/2012',[['2013', '2012', '2011', '2010', '2009', '2008', '2007','2006', '2005', '2004', '2003', '2002', '2001', '2000'],[MISSING_BCI, 72.3, MISSING_BCI, 69.5, MISSING_BCI, 70.0, MISSING_BCI,70.3, MISSING_BCI, 70.5, MISSING_BCI, 70.7, 72.9, MISSING_BCI]]] def create_example_bridge_2() ->…CUSTOMERColumns = 7, Rows = 10 CustomerID LastName FirstName Address ZIP Phone Email 1 Shire Robert 6225 Evanston Ave N 98103 206-524-2433 Robert.Shire@somewhere.com 2 Goodyear Katherine 7335 11th Ave NE 98105 206-524-3544 Katherine.Goodyear@somewhere.com 3 Bancroft Chris 12605 NE 6th Street 98005 425-635-9788 Chris.Bancroft@somewhere.com 4 Griffith John 335 Aloha Street 98109 206-524-4655 John.Griffith@somewhere.com 5 Tierney Doris 14510 NE 4th Street 98005 425-635-8677 Doris.Tierney@somewhere.com 6 Anderson Donna 1410 Hillcrest Parkway 98273 360-538-7566 Donna.Anderson@elsewhere.com 7 Svane Jack 3211 42nd Street 98115 206-524-5766 Jack.Svane@somewhere.com 8 Walsh Denesha 6712 24th Avenue NE 98053 425-635-7566 Denesha.Walsh@somewhere.com 9 Enquist Craig 534 15th Street 98225 360-538-6455 Craig.Enquist@elsewhere.com 10 Anderson Rose 6823 17th Ave NE 98105 206-524-6877 Rose.Anderson@elsewhere.com EMPLOYEEColumns = 5, Rows = 5 EmployeeID LastName FirstName…CUSTOMERColumns = 7, Rows = 10 CustomerID LastName FirstName Address ZIP Phone Email 1 Shire Robert 6225 Evanston Ave N 98103 206-524-2433 Robert.Shire@somewhere.com 2 Goodyear Katherine 7335 11th Ave NE 98105 206-524-3544 Katherine.Goodyear@somewhere.com 3 Bancroft Chris 12605 NE 6th Street 98005 425-635-9788 Chris.Bancroft@somewhere.com 4 Griffith John 335 Aloha Street 98109 206-524-4655 John.Griffith@somewhere.com 5 Tierney Doris 14510 NE 4th Street 98005 425-635-8677 Doris.Tierney@somewhere.com 6 Anderson Donna 1410 Hillcrest Parkway 98273 360-538-7566 Donna.Anderson@elsewhere.com 7 Svane Jack 3211 42nd Street 98115 206-524-5766 Jack.Svane@somewhere.com 8 Walsh Denesha 6712 24th Avenue NE 98053 425-635-7566 Denesha.Walsh@somewhere.com 9 Enquist Craig 534 15th Street 98225 360-538-6455 Craig.Enquist@elsewhere.com 10 Anderson Rose 6823 17th Ave NE 98105 206-524-6877 Rose.Anderson@elsewhere.com EMPLOYEEColumns = 5, Rows = 5 EmployeeID LastName FirstName…
- Explain this code detail by detail like putting comments private void table_update() { int CC; try { // It is for SOMETHING ETC.*** Class.forName("com.mysql.jdbc.Driver"); con1 = DriverManager.getConnection("jdbc:mysql://localhost/linda","root",""); insert = con1.prepareStatement("SELECT * FROM record"); ResultSet Rs = insert.executeQuery(); ResultSetMetaData RSMD = Rs.getMetaData(); CC = RSMD.getColumnCount(); DefaultTableModel DFT = (DefaultTableModel) jTable1.getModel(); DFT.setRowCount(0); while (Rs.next()) { Vector v2 = new Vector(); for (int ii = 1; ii <= CC; ii++) { v2.add(Rs.getString("id")); v2.add(Rs.getString("name")); v2.add(Rs.getString("mobile")); v2.add(Rs.getString("course")); }…Microsoft Access table design models: how to choose?Open your text editor and create a new document named model.php model.php will contain functions that will connect to a database potentially return PDO statementobjects to the controller for processing. updateMessagesfunction updateMessages($id)This method will take a single parameter of id which is the saved id from the last or latest message displayed. It will conditionally select from the table “messages”, id, name, message, and time. The condition is that the field id is greater than the parameter for id. The return is the PDOStatement object with the row data from the query.
