We can lock a table to ensure that we don't accidentally overwrite someone else's edits. 1) A single attribute, but not a row, table, or database as a whole. O 2) A single row, but not a complete table 3) A single row or a single table, but not a full database 4) A single row, a table, or a database in its whole
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- In Oracle, if you have two tables related by connecting a primary key in table B and a foreign key in table A, how does the database behave during the insertion of a new record into table A? Question 45 options: 1) It creates a new primary key attribute that is automatically numbered as a sequence of numeric values. 2) It prevents foreign key values from being duplicated in table A. 3) It prevents any records from being deleted from either Table A or Table B. 4) It prevents a row from being inserted into table A if the data in the foreign key column of table A doesn't match any of the values in the primary key column of the table B.You are given a database - MGMT2006_202324S02_Boutique Inc Student File.accdb, containing Currencies, Sales, and Locations tables to provide some results for MGMT Boutique INC. (That is, your CC will provide you with the database). You should: 1. Rename the database as MGMT2006_Boutique_ is your actual name. 2. Create relationships between pairs of tables and enforce referential integrity 3. Append two (2) new customers, two (2) old customers and two (2) new POS transactions. Be sure to include sales for your two new customers. 4. Create the following queries: a. List the names of places from which the company sells. Show all columns in the table. Name this query Q1-SELLING-LOCATIONSHow do locks work? Describe the key distinction between an exclusive lock and a shared lock during a transaction in a database.
- How do locks work? Describe the main distinction between a shared lock and an exclusive lock during a database transaction.Create a MYSQL Database named 'db'Create a MYSQL User named 'dbuser' with a password 'dbpass' Grant Insert, Delete, Update and Select privileges for 'dbuser' on 'db' Create a MYSQL Table on database 'db' and name it as 'students' with the following field and field propertiesField Name Field Type Field Size Additional İnformationStudent No Varchar 6 Primary keyName Varchar 20 Surname Varchar 25 birthdate dateConsider given database schema and write triggers for each statement. Student ( regNo, sName, sCity, sCGPA, sAge)Course ( cCode, cName, credit_hours)Enrollment (regNo, cCode, semester,quality_points,Grade) 1- A trigger which display all data of student table whenever a record is inserted in Student table. 2- A trigger which deletes all data from course table whenever total number of records in “Course” table reaches 10. 3- A trigger which displays all data of “Enrollment” table whenever a record is deleted from “Enrollment” table. 4- A trigger which displays data of “Student” table on insertion of every 10th record. 5- A trigger that checks age of Student after insertion, delete all those employees whose age is above 25.
- What type of values are used to prevent successful rainbow table attacks against an offline database, authentication system designersBy locking a table, we can prevent overwriting of other users' changes. 1) An individual piece of data, as opposed to a whole row, table, or database. O Two) A table with just one row (3) A single data point, such as a row or table, but not a whole database. (4) A single record, a table, or a whole databaseDatabase Schema is "A complete view of database tables as presented in a given database under a specific user log-in"? True False
- Chapter 17 How to manage database security Exercises using the My Guitar Shop Database Use Microsoft SQL Server Write a script that creates a user-defined database role named OrderEntry in the MyGuitarShop database. Give INSERT and UPDATE permission to the new role for the Orders and OrderItems table. Give SELECT permission for all user tables. 2.Write a script that (1) creates a login ID named “RobertHalliday” with the password “HelloBob”; (2) sets the default database for the login to the MyGuitarShop database; (3) creates a user named “RobertHalliday” for the login; and (4) assigns the user to the OrderEntry role you created in exercise 1.Write, but do not execute, the commands to grant the following privileges: a. User Oliver must be able to retrieve data from the CONDO_UNIT table. b. Users Crandall and Perez must be able to add new owners and condo units to thedatabase. c. Users Johnson and Klein must be able to change the condo fee of any unit. d. All users must be able to retrieve the unit number, condo fee, and owner number forevery condo unit. e. User Klein must be able to add and delete service categories. f. User Adams must be able to create an index on the SERVICE_REQUEST table. g. Users Adams and Klein must be able to change the structure of the CONDO_UNITtable. h. User Klein must have all privileges on the LOCATION, OWNER, and CONDO_UNITtables.Which of the following has no repeating groups but can contain partial or transitive dependencies? unnormalized data 1NF 2NF 3NF