Which one of these option will slow down the execution of your queries? Indexes Query Optimizer Linear Search
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Which one of these option will slow down the execution of your queries?
- Indexes
- Query Optimizer
- Linear Search
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- Which of the following data dictionary objects should be used to view information about the constraints in a database? USER_TABLES USER_RULES USER_COLUMNS USER_CONSTRAINTS None of the above objects should be used.What is the price of the least expensive item in the database?Assign privileges to the new account that allow connecting to the database, creating new tables, and altering an existing table.
- SQL(Oracle): How do I create an index for the number of days it takes to ship an order? i.e. shipdate-orderdateIn Database sql Createthefollowingtables:You are required to create the following tables in a database named SICKLEAVE:EMPLOYEESEMPLOYEE_ID VARCHAR(5) NOT NULL PRIMARY KEYEMPLOYEE_NAME VARCHAR(30) NOT NULLEMPLOYEE_SURNAME VARCHAR(30) NOT NULLDATE_OF_BIRTH DATE NOT NULLDOCTORSDOCTOR_ID VARCHAR(5) NOT NULL PRIMARY KEYDOCTOR_NAME VARCHAR(30) NOT NULLEMPLOYEE_SICKLEAVEEMPLOYEE_ID VARCHAR(5) NOT NULL PRIMARY KEYFOREIGN KEY REFERENCESEMPLOYEES(EMPLOYEE_ID)START_DATE DATE NOT NULL PRIMARY KEYDOCTOR_ID VARCHAR(5) NOT NULLNUMBER_OF_DAYS SMALLINT NOT NULL(20)Q.1.2 Populate the tables created in Q.1.1 with the following data:EMPLOYEESEMPLOYEE_ ID EMPLOYEE_NAME EMPLOYEE_SURNAMEDATE_OF_BIRTHI0001 Dominique Woolridge 1993-04-19I0002 Nico Baird 1991-11-19I0003 Derek Moore 1992-06-24I0004 Neo Petlele 1993-12-29I0005 Andrew Crouch 1994-01-30DOCTORS(10)Question 2 (Marks: 20)Q.2.1 Write a query that will display doctors' names that have not issued any doctor’scertificates to employees yet.Sample Results:DOCTOR_NAMEJulia Robbins(5)DOCTOR_ID…
- Transact-SQL Exercise Write and execute a query that returns the maximum or highest list price value in the Production. Product table from DatabaseName2020You are required to create the following tables in a database named SICKLEAVE:EMPLOYEESEMPLOYEE_ID VARCHAR(5) NOT NULL PRIMARY KEYEMPLOYEE_NAME VARCHAR(30) NOT NULLEMPLOYEE_SURNAME VARCHAR(30) NOT NULLDATE_OF_BIRTH DATE NOT NULL DOCTORSDOCTOR_ID VARCHAR(5) NOT NULL PRIMARY KEYDOCTOR_NAME VARCHAR(30) NOT NULL EMPLOYEE_SICKLEAVEEMPLOYEE_ID VARCHAR(5) NOT NULL PRIMARY KEYFOREIGN KEY REFERENCESEMPLOYEES(EMPLOYEE_ID)START_DATE DATE NOT NULL PRIMARY KEYDOCTOR_ID VARCHAR(5) NOT NULLNUMBER_OF_DAYS SMALLINT NOT NULLDatabase Question this is review Please keep the answer short The SQL statements that answer these questions. please keep the answer simple will give thumbs up thank you :)! INSERT STATEMENT LINK below https://drive.google.com/file/d/1qHCkrods5K2V1syyS5IG6-Eb_3QQmud7/view?usp=sharing Table.SQL below -- MySQL Script generated by MySQL Workbench-- Sun Feb 21 00:00:31 2021-- Model: New Model Version: 1.0-- MySQL Workbench Forward Engineering SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION'; -- ------------------------------------------------------- Schema mydb-- ----------------------------------------------------- -- ------------------------------------------------------- Table state-- -----------------------------------------------------CREATE TABLE IF…
- Submit Result Key Here.. Subm SQL Injection Escaping Challenge To complete this challenge, you must exploit SQL injection flaw in the following form to find the result key. The developer of this level has attempted to stop SQL Injection attacks by escaping apostrophes so the database interpreter will know not to pay attention to user submitted apostrophes Challenge Hint This is the query you are injecting code into! Be aware that your apostrophes are being escaped with a leading backslash before being sent to the interpreter SELECT FROM customers WHERE customerld =" Please enter the Customer Id of the user that you want to look up Get user There were no results found in your searchSOSL Query: Create a SOSL Query in salesforce to find the test keyword in the whole organization. You can use the documentation for the reference.Q5: When alias are particularly useful in SQL queries? What can be possible risks while not using alias in query?
