Author Question: Briefly describe how a developer defines the type of locking behavior to be used with SQL Server. ... (Read 209 times)

Bernana

  • Hero Member
  • *****
  • Posts: 530
Briefly describe how a developer defines the type of locking behavior to be used with SQL Server.
 
  What will be an ideal response?

Question 2

Most DBMS products will let you define a primary key on a column that contains null values.
 
  Indicate whether the statement is true or false



Jbrasil

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

Locking behavior in SQL Server is determined by the interaction of transaction isolation level, cursor concurrency setting, and locking hints. Transaction isolation level can be defined to be Read Uncommitted, Read Committed, Repeatable Read, or Serializable. Read Committed is the default setting. Cursor concurrency can be set to Read-only, Optimistic, or Scroll_Lock. Scroll_Lock is a type of pessimistic locking. The cursor type determines the default type of cursor concurrency. Locking hints can be used by experienced developers to modify locking behavior. Locking hints can override transaction isolation level for a given transaction, or influence the types of locks that SQL Server uses for a given transaction. Locking hints are specified by the WITH parameter of the FROM clause in SELECT SQL statements.

Answer to Question 2

FALSE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

The average adult has about 21 square feet of skin.

For a complete list of videos, visit our video library