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183. | __________ is a contiguous group of blocks allocated for use as part of a table, index, and so forth. |
a. | Tablespace |
b. | Segment |
c. | Extent |
d. | Block |
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- Which of the keys below are not supported by a relational database? a. Foreign keys b. Composite keys c. Dynamic keys d. Primary keys In InfluxDB, it is advantageous to store data used in search queries using tags rather than fields. What is the advantage of storing data in tags over fields? a. Tags are indexed which improves search speed. b. Tags retain the datatype of the data whereas fields converting every data to string. c. It is easier to write search query using tags rather than fields. d. Data stored in tags can be easily exported to other formats. Our Neo4j database consists of ‘Student’ and ‘Course’ nodes. A student node is connected to course node via a relationship ‘STUDIES_IN’. Write a query to retrieve all courses that the student ‘Peter Parker’ is enrolled in? a. a) RETURN c WHERE (: Student { name: ‘Peter Parker’ }) –[:STUDIES_IN]-> (c:Course) b.…Which of the following are true about primary keys? SELECT ALL THAT APPLY. A) They must reference one or more columns in a single table. B) They are usually implemented using an index. C) They guarantee that no two rows in a table have duplicate primary key values. D) They must be defined for every database table.Q9:- Which data-type .maketrans() return? Table List Tuple Dictionary Q 10:- How to loop over the float range? Arange Enumerate Range None of these Q4:- Which of the following is correct ? deafaultdict throws a KeyErrror when the key is not present in it. Sorting dictionary by the key has more runtime accessing than the sorting by the value. c)Sorting dictionary by the key has less runtime accessing than the sorting by the value. d).None of these. Q5:- Choose the correct statement:- getattr() and setattr() are used to retrieve and set class attributes. pow() and ** will always produce the same value. getattr() and setattr() are used to retrieve and set Constructor attribute. None of these.
- please explain the following command sequences a) who | grep "Seneca" | sort | uniq >>who<< b)sort <names > names c)sort ~/files/phone 1> /dev/null2>phone2 d)ls/root/&> files.log e)ls/etc/>files.log2>&1ASP.NET MVC C# VS 2019Can you please help me with the syntax error? I was trying to display the calendar on the top of the page but I made an error. @model List<AdventureDB.Models.CalendarItem> @using System@using System.Web.Mvc @{var weeks = (int)Math.Ceiling((double)(Model.Count + 13) / 7);var startDate = Model.Count > 0 ? Model[0].Date : DateTime.Today; var endDate = startDate.AddYears(4);} @using (Html.BeginForm("Index", "Home", FormMethod.Get)){<label for="startDate">Training Start Date:</label><input type="date" id="startDate" name="startDate" /><input type="submit" value="Submit" />} @model IEnumerable<AdventureDB.Models.Training_Program>@using AdventureDB.Models@{// Create an instance of the data contextvar dbIEFW = new IEFWResourceDataContext();var dbIFE = new IFEResourcesDataContext();var dbREF = new REFDataContext();var dbAQC = new AQCDataContext();var dbAQCUSAF = new AQCUSAFDataContext();var dbIPC = new IPCDataContext();var dbIFTR =…The Ch07_LargeCo database stores data for a company that sells paint products . The company tracks the sale of products to customers . The database keeps data on customers (LGCUSTOMER), sales (LGINVOICE), products (LGPRODUCT), which products are on which invoices (LGLINE), employees (LGEMPLOYEE), the salary history of each employee (LGSALARY_HISTORY), departments (LGDEPARTMENT), product brands (LGBRAND), vendors (LGVENDOR), and which vendors supply each product (LGSUPPLIES). Some of the tables contain only a few rows of data , while other tables are quite large : for example , there are only eight departments , but more than 3300 invoices containing over 11000 invoice lines . For Problems 28-55 , a figure of the correct output for each problem is provided . If the output of the query is very large , only the first several rows of the output are shown .
- Download a petrol dataset in kaggle datasets, and perform the following codes.a. Create a external table and upload a data from hive table to it b. Create a partition table and upload a data from hive table Provide me a SS i'll upvote else downvoteComplete the Python program below to display the name of the most recently added dataset and collect the total number of datasets currently listed on the URL provided below. !pip install cssselect from lxml import htmlimport requestsresponse = requests.get('http://catalog.data.gov/dataset?q=&sort=metadata_created+desc')doc = #TO DO -- Complete the Codetitle = #TO DO -- Complete the Codeprint("The name of the most recently added dataset on data.gov:")print(title.strip()) response1 = requests.get('http://www.data.gov/')doc_gov = #TO DO -- Complete the Codelink_gov = #TO DO -- Complete the Codeprint("Number of datasets currently listed on data.gov:")print(link_gov.text) *OUTPUT TEXT: * The name of the most recently added dataset on data.gov: Canterbury, New Zealand 2018 Number of datasets currently listed on data.gov: 224,654 datasetsWhich of these would not be a good primary key for a file of employee records? a. A and B b. Social security number c. Company employee number d. Last name
- Which of the keys below are not supported by a relational database? a. Foreign keys b. Composite keys c. Dynamic keys d. Primary keys134. EMPDET is an external table containing the columns EMPNO and ENAME. Which command would work in relation to the EMPDET table? a. UPDATE empdetSET ename = 'Amit'WHERE empno = 1234; b. DELETE FROM empdetWHERE ename LIKE 'J%'; c. CREATE VIEW empvuASSELECT * FROM empdept; d. CREATE INDEXempdet_idxON empdet(empno);which object can be used to speed up searches and quires in general? a) Index b) Unique c) Check d) Cascade