The module qmul contains a Data Frame enrolment_data that contains information regarding academic module enrolment figures at a reputable London university. This DataFrame contains a column labelled 'Module' which contains unique identifying-codes for each module (given in the form 'MTHXXXX", where XXXX is a numeral composed of four digits). The rows are indexed with integers from zero. Import this DataFrame and modify its content so that every row indexed with an even integer has its module code increased by 4. For example, the module code at row zero, 'MTH4000', should become 'MTH4004', etc.

SQL: Create a SQL query that uses an uncorrelated subquery and no joins to display the descriptions for products provided by a vendor in area code 615. Remember, the main difference between a correlated subquery and uncorrelated subquery is that, in a correlated subquery, the inner query is dependent upon the outer query, while, with an uncorrelated query, the inner query does not depend upon the outer query. Instead, it runs just once. You should NOT use union, minus, or intersect in this query. The outer query will use the PRODUCT table and the inner query will use the VENDOR table [hint: you should have 9 records of output].   My code: select p_descript from product where (select v_areacode from vendor where v_areacode = '615' ; I am getting this error, problem is I can't see what is missing any assistance is appreciated.  ORA-00936: missing expression

Import the pets.csv dataset from your data file into Rstudio. Use the unique function on the pet column to find all the unique pets in the data. Which is the second pet in the resulting output?

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…

Given the following average precipitation data which contains both categorical and numerical data: data = [ ('city': 'Atlanta', 'precipitation in mm': '1263'}, ['city': 'Austin', 'precipitation in mm': '870'} ['city': 'Chicago', 'precipitation in mm': '937"} 3 Using one-hot encoding, what would be your feature matrix? Insert a table with column names to show your answer:

MYSQL Create a view vTop_Course_count to list the top 2 most popular course names and the number of students took these two courses for all years. Below is a sample output. | name mycount Java2 Data Structure 10 Students sid first_name last_name birthday major zipcode Huang 1990-01-01 cs 1976-02-08 IT 1987-03-21 Math 1947-08-25 Biology 07101 1997-01-25 | CS 1995-09-15 IT 1988-01-15 |Nursing |07101 |07123 08348 1001 Austin 1002 Mary Smith 1003 Claudia Lee 91384 1004 Andrew Lin 1005 Helen Wu 07083 1007 1008 Sarah Lee 4101 Andrew |Huang Courses cid name credits CPS1231 |Java1 14 CPS2231 Java2 CPS2232 Data Structure CPS3500 Web Programming CPS3740 Database Introduction 3 CPS5740 Database Systems CPS5921 Data Mining 4 4 3 3 Students_Courses sid cid year semester grade CPS2231 2013 CPS2231 2015 CPS2231 2014 CPS3740 2011 CPS2232 2014 CPS2232 2016 1001 Fall A- 1003 Spring Spring A- 1004 1009 Fall B- 1009 Fall 1001 1004 Fall C+ CPS2232 2014 Spring B+

which description defines data type? a) It is a named set of values. b)  It is an unnamed tuple of values. c)It has values corresponding to columns. d) It has a name and varying set of row.

uaw rhe given infornmation to Write the MongoDB Shell code to add 3 documents to the books collection. Use the ISBN number as the document identifying key value. Use the following information (note the 3rd book uses your name and student id#):  ISBN Title Author 12345678 The Hobbit J.R.R. Tolkien 45678912 DaVinci Code Dan Brown Your student ID DBS311 Your Name

CREATE TABLE Country ( ); Name VARCHAR(60), ISOCode2 CHAR (2), IndepYear SMALLINT, Population INTEGER DEFAULT 0, PopDensity DECIMAL (7, 2) DEFAULT 1.00, Area DECIMAL (9, 2) A row is inserted into Country with Name 'Lilliput' but with no other values specified. What is Lilliput's PopDensity? Ex: 5.00 or NULL What is Lilliput's Population? What is Lilliput's ISOCode2? Ex: 5 or NULL Ex: 'AB' or NULL

use dplyr dataframe storms in rstudio to answer this question Add a column hours_by_name to the storms data set which has the value of names where hours>0, and ‘Other’ if hours is 0. (This will assign any individuals that are unique in the data set to a single class.)