SQL Server 2012: Writing T-SQL Statements
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Questions and Answers

What is the primary purpose of the tutorial on Writing Transact-SQL Statements?

  • To introduce basic SQL statements for beginners (correct)
  • To assist users in creating complex SQL queries
  • To provide a comprehensive database design course
  • To compare Transact-SQL with other SQL standards

What does Transact-SQL represent in the context of SQL Server?

  • A Microsoft implementation of the SQL standard (correct)
  • An advanced user interface for SQL management
  • A proprietary database management system
  • A visualization tool for SQL databases

What kind of users is the tutorial intended for?

  • Software developers focusing on application logic
  • Data analysts with SQL knowledge
  • Experienced database administrators
  • Users new to writing SQL statements (correct)

Which of the following statements is accurate regarding the complexity of the examples used in the tutorial?

<p>The examples are intentionally simple for beginners (C)</p> Signup and view all the answers

What aspect is NOT a focus of the tutorial on Writing Transact-SQL Statements?

<p>Advanced SQL optimization techniques (C)</p> Signup and view all the answers

What is the first step to create a new Windows account on your computer?

<p>Type %SystemRoot% extless&gt;system32 extgreater compmgmt.msc /s in the Run box. (A)</p> Signup and view all the answers

Which statement correctly describes the function of 'FROM WINDOWS' in the CREATE LOGIN syntax?

<p>'FROM WINDOWS' signifies that Windows will authenticate the user based on local computer credentials. (A)</p> Signup and view all the answers

What is required to create a database in SQL Server?

<p>An administrator-level account (D)</p> Signup and view all the answers

What must you do after creating a login for Mary to allow her to access the TestData database?

<p>Use the CREATE USER statement to map her login to the database. (D)</p> Signup and view all the answers

Which utility can be used to submit Transact-SQL statements aside from SQL Server Management Studio?

<p>sqlcmd utility (B)</p> Signup and view all the answers

Why must the login for Mary be created on each instance of SQL Server she needs to access?

<p>Local Windows accounts cannot be authenticated across multiple SQL Server instances. (B)</p> Signup and view all the answers

What is required of you in order to create a new Windows user account?

<p>Having administrator privileges on the computer. (B)</p> Signup and view all the answers

Which of the following is NOT mentioned as an installation requirement for the tutorial?

<p>Windows 10 or later (A)</p> Signup and view all the answers

What does the CREATE DATABASE statement require as a parameter?

<p>The name of the database (C)</p> Signup and view all the answers

Which parameter is optional when creating a login for Mary with a default database?

<p>The DEFAULT_DATABASE argument. (A)</p> Signup and view all the answers

Which of the following statements about Mary is true after you create her login?

<p>Mary has access to the instance of SQL Server but requires further permissions for database access. (D)</p> Signup and view all the answers

What is one of the first steps to start using Transact-SQL in SQL Server Management Studio?

<p>Connect to an instance of the SQL Server Database Engine (C)</p> Signup and view all the answers

What does the expression 'Price * 1.07' represent in the SQL query?

<p>The price including a 7% tax (C)</p> Signup and view all the answers

What is the role of the CREATE USER statement in this context?

<p>It allows mapping of a login to a specific database user. (A)</p> Signup and view all the answers

Which SQL statement is used to create a new database?

<p>CREATE DATABASE (C)</p> Signup and view all the answers

When the CREATE DATABASE statement is executed without optional parameters, what values does SQL Server use?

<p>Default values for most parameters (B)</p> Signup and view all the answers

What feature is recommended to be added to the document viewer toolbar during tutorials?

<p>Next and Previous buttons (C)</p> Signup and view all the answers

What is the first step to grant a user access to a database?

<p>Create a login (D)</p> Signup and view all the answers

Which task is NOT covered in the described lesson about creating database objects?

<p>Creating an Application (B)</p> Signup and view all the answers

Which of the following is a category of functions usable in SELECT statements?

<p>String Functions (A)</p> Signup and view all the answers

What is the purpose of creating a view in SQL?

<p>To simplify complex queries (D)</p> Signup and view all the answers

What is the role of the ProductID column in the Products table?

<p>It is the primary key of the table. (C)</p> Signup and view all the answers

What SQL statement is used to modify existing records in a database?

<p>UPDATE (B)</p> Signup and view all the answers

What type of authentication is recommended when creating a login for SQL Server?

<p>Windows Authentication whenever possible (B)</p> Signup and view all the answers

Which of the following data types is used for the Price column in the Products table?

<p>money (A)</p> Signup and view all the answers

Which SQL command would you use to retrieve all columns from a table?

<p>SELECT * FROM Products (A)</p> Signup and view all the answers

What is indicated by the column alias 'CustomerPays' in the SQL query?

<p>The customer's total price after tax (A)</p> Signup and view all the answers

In the CREATE TABLE statement for Products, which columns are allowed to be NULL?

<p>Price and ProductDescription (D)</p> Signup and view all the answers

What statement is used to switch the connection to the TestData database after creation?

<p>USE TestData (D)</p> Signup and view all the answers

In SQL Server, which step follows creating a login when granting database access?

<p>Configuring the login as a user in the database (D)</p> Signup and view all the answers

What does the WHERE clause do in a SELECT statement?

<p>Filters the records based on a condition (D)</p> Signup and view all the answers

When inserting data, which of the following statements correctly describes the INSERT syntax?

<p>INSERT INTO table name (column list) VALUES (value list). (C)</p> Signup and view all the answers

What will the following SQL command return? SELECT ProductName, Price FROM dbo.Products;

<p>Product Names and Prices only (C)</p> Signup and view all the answers

What is the consequence of not specifying a column list while selecting data?

<p>All columns will be returned unless specified (B)</p> Signup and view all the answers

Which SQL command would you use to modify an existing row in the Products table?

<p>UPDATE (A)</p> Signup and view all the answers

Which clause is essential in the UPDATE statement to target a specific row?

<p>WHERE (C)</p> Signup and view all the answers

What is the primary purpose of using the AS keyword in a SELECT statement?

<p>To rename a column in the output (C)</p> Signup and view all the answers

What is the recommended practice when writing SELECT statements for permanent code?

<p>Using a column list instead of an asterisk (A)</p> Signup and view all the answers

In the context of the Products table, what does 'dbo' represent?

<p>A schema for database ownership (D)</p> Signup and view all the answers

If you need to perform a mathematical operation on the Price column during a SELECT operation, what will happen if you do not use AS?

<p>The resulting column will not have a name (D)</p> Signup and view all the answers

Flashcards

Transact-SQL

A structured query language (SQL) implementation used by Microsoft for their SQL Server product. It extends the standard SQL definition by adding features specific to SQL Server.

SQL statements

A series of instructions used to interact with databases, including creating, reading, updating, and deleting data.

Table

A database object that stores data in a structured format, organized into rows and columns. Each row represents a record, while each column represents a particular attribute.

Inserting data

The action of adding new data records to a database table.

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Clause

A command or instruction used within a SQL statement to perform a specific action, such as inserting data, retrieving records, or updating values.

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CREATE DATABASE

A statement in Transact-SQL that creates a new database in SQL Server. Uses 'CREATE DATABASE name' syntax.

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Stored Procedure

A stored set of instructions that can be executed by the database engine. Can be used for various tasks like data manipulation and maintenance.

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Database Schema

A set of specific rules that govern how a database is structured and how data is stored and accessed.

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Database File

A specific location inside a database where data is stored.

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SQL Server Management Studio

A high-level program that provides a graphical interface for managing SQL Server databases.

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Management Studio Express

A type of SQL Server Management Studio specifically designed for developers.

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CREATE TABLE

A keyword used in SQL to create a new table in a database, specifying the table name, columns with data types, and constraints.

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Primary Key

A unique identifier assigned to each row in a table, ensuring that each record can be accessed and identified individually.

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varchar(25)

A data type specifying that a column can hold a sequence of characters, such as names, addresses, or descriptions.

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money

A data type allowing a column to store monetary values with decimal precision.

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text

A data type that stores text data without a fixed length limit, allowing for large amounts of text.

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INSERT

A statement in SQL used to insert new data records into an existing table.

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UPDATE

A statement used to modify existing data records in a table, changing the values of specific columns for selected rows.

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SELECT Statement

Retrieving and displaying data from a database table. The SELECT statement is the foundation for querying data in SQL Server.

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WHERE Clause

A clause in the SELECT statement used to filter the data displayed. It allows you to specify conditions for rows to be included in the result.

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SELECT *

Returns all the columns in a table. This is often used for ad-hoc queries, but it's better to specify columns for clarity and predictability.

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WHERE

Used to restrict the rows returned based on a condition.

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ORDER BY

Provides the ability to specify the order in which data is returned, useful for sorting the results.

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GO

A symbol that instructs the SQL engine to execute a batch of SQL statements at once.

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View

A database object that provides a simplified view of data from one or more tables.

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Granting Access

The process of granting access to a specific user or group within a database.

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Login

A mechanism that allows a user to connect to the SQL Server Database Engine.

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String Data

A special kind of data that's stored as text or characters.

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Local Windows Account

A user account created on a local Windows machine that can access SQL Server.

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SQL Server Login

A unique identifier created in SQL Server to grant access to the instance.

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DEFAULT_DATABASE

The database to which a user is automatically connected when they log into SQL Server.

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FROM WINDOWS

Specifies that the login authentication will be handled by the Windows operating system.

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CREATE LOGIN

A command to authorize a SQL Server login.

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Database User

A distinct user account created within a specific database.

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Mapping a login to a user

Relates a SQL Server login to a database user.

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CREATE USER

A command that creates a new database user.

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Study Notes

SQL Server 2012 Tutorials: Writing Transact-SQL Statements

  • This tutorial is for new SQL statement users
  • It covers basic statements for creating tables and inserting data
  • It uses Transact-SQL (Microsoft's SQL implementation)
  • It's a brief introduction, not a replacement for a Transact-SQL class
  • Statements are simplified and do not reflect production database complexity
  • Applicable to SQL Server 2012
  • Source: SQL Server Books Online
  • Publication date: June 2012

Tutorial Contents

  • Lesson 1: Creating Database Objects

    • Creating a database (Tutorial)
    • Creating a table (Tutorial)
    • Inserting and updating data in a table (Tutorial)
    • Reading data in a table (Tutorial)
    • Summary: Creating database objects

  • Lesson 2: Configuring Permissions on Database Objects

    • Creating a login
    • Granting access to a database
    • Creating views and stored procedures
    • Granting access to a database object
    • Summary: Configuring permissions on database objects

  • Lesson 3: Deleting Database Objects

    • Deleting database objects

Requirements

  • Any edition of SQL Server
  • SQL Server Management Studio or Management Studio Express
  • Internet Explorer 6 or later (or equivalent)

Creating a Database (Procedure)

  • Use the CREATE DATABASE statement
  • The database name is required
  • Optional parameters exist for disk location
  • SQL Server uses default values when no optional parameters are provided

Creating a Table (Procedure)

  • Provide a table name and column definitions
  • Primary keys should be used for uniqueness
  • Data types and NULL values (allowing empty fields) must be specified

Inserting and Updating Data (Procedure)

  • INSERT statement to insert data into a table
  • UPDATE statement to modify existing data
  • WHERE clause for specific row updates

Reading Data (Procedure)

  • Use the SELECT statement for data retrieval
  • The syntax can include columns; all columns; or a WHERE clause for filtering

Creating Views and Stored Procedures

  • Views are stored SELECT statements
  • Stored procedures are sets of Transact-SQL statements
  • Stored procedures can accept inputs and outputs, managing flow.

Granting Access to Objects

  • Use the GRANT statement to give users permissions (e.g., execute stored procedures)
  • Executing (or running) a stored procedure requires EXECUTE permission.
  • To remove permissions use REVOKE

Deleting Objects

  • Use DROP statements to remove procedures, views, tables, and databases

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Related Documents

SQL Server 2012 Tutorials: Writing Transact-SQL Statements PDF

Description

This tutorial is designed for beginners learning to write Transact-SQL statements in SQL Server 2012. It covers the basics of creating tables, inserting data, and configuring permissions for database objects, providing a simplified introduction to T-SQL. Perfect for new users looking to get started with SQL Server.

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