What is Transact-SQL with example?

T-SQL (Transact-SQL) is a set of programming extensions from Sybase and Microsoft that add several features to the Structured Query Language (SQL), including transaction control, exception and error handling, row processing and declared variables.

What are the 5 SQL statement types?

Types of SQL Statements

  • Data Definition Language (DDL) Statements.
  • Data Manipulation Language (DML) Statements.
  • Transaction Control Statements.
  • Session Control Statements.
  • System Control Statement.
  • Embedded SQL Statements.

What are the 4 basic commands in SQL?

There are four basic SQL Operations or SQL Statements.

  • SELECT – This statement selects data from database tables.
  • UPDATE – This statement updates existing data into database tables.
  • INSERT – This statement inserts new data into database tables.
  • DELETE – This statement deletes existing data from database tables.

What is SQL database transaction?

A transaction is a unit of work that is performed against a database. Transactions are units or sequences of work accomplished in a logical order, whether in a manual fashion by a user or automatically by some sort of a database program. A transaction is the propagation of one or more changes to the database.

WHERE is the Transact-SQL concept is used Mcq?

Explanation: Transact-SQL is central to using SQL Server. All applications that communicate with an instance of SQL Server do so by sending Transact-SQL statements to the server, regardless of the user interface of the application.

What are the components of SQL?

SQL has three main components: the Data Manipulation Language (DML), the Data Definition Language (DDL), and the Data Control Language (DCL).

WHERE do you write SQL commands?

On the Workspace home page, click SQL Workshop and then SQL Commands. The SQL Commands page appears. Enter the SQL command you want to run in the command editor. Click Run (Ctrl+Enter) to execute the command.

What is the syntax to create stored procedure is?

The syntax to create a stored procedure in SQL Server (Transact-SQL) is: CREATE { PROCEDURE | PROC } [schema_name.]

What are the characteristics of transactions?

According to specialists (R. Coase, O. Williamson etc.), transactions can be described by the following characteristics: asset specificity, uncertainty, frequency, transformation costs and transaction costs.