4. Data Modification with SQL Server Transact-SQL Statements | SQL Server 2014 Development Essentials

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SQL Server 2014 Development Essentials

By : Basit A. Masood-Al-Farooq

3 (3)

SQL Server 2014 Development Essentials

3 (3)

By: Basit A. Masood-Al-Farooq

Overview of this book

This book is an easy-to-follow, comprehensive guide that is full of hands-on examples, which you can follow to successfully design, build, and deploy mission-critical database applications with SQL Server 2014. If you are a database developer, architect, or administrator who wants to learn how to design, implement, and deliver a successful database solution with SQL Server 2014, then this book is for you. Existing users of Microsoft SQL Server will also benefit from this book as they will learn what's new in the latest version.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Microsoft SQL Server Database Design Principles

1. Microsoft SQL Server Database Design Principles

Database design

Table design

Relationships

Data integrity

The basics of data normalization

The SQL Server database architecture

The importance of choosing the appropriate data type

Summary

2. Understanding DDL and DCL Statements in SQL Server

2. Understanding DDL and DCL Statements in SQL Server

Understanding the DDL, DCL, and DML language elements

Understanding the purpose of SQL Server 2014 system databases

An overview of database recovery models

Creating and modifying databases

Creating and managing database schemas

Creating and managing tables

Grant, deny, and revoke permissions to securables

Summary

3. Data Retrieval Using Transact-SQL Statements

3. Data Retrieval Using Transact-SQL Statements

Understanding Transact-SQL SELECT, FROM, and WHERE clauses

Using T-SQL functions in the query

Multiple table queries using UNION, EXCEPT, INTERSECT, and JOINs

Subqueries

Common Table Expressions

Organizing and grouping data

Using the Transact-SQL analytic window functions

Summary

4. Data Modification with SQL Server Transact-SQL Statements

4. Data Modification with SQL Server Transact-SQL Statements

Inserting data into SQL Server database tables

Updating data in SQL Server database tables

Deleting data from SQL Server database tables

Using the MERGE statement

The TRUNCATE TABLE statement

The SELECT INTO statement

Summary

5. Understanding Advanced Database Programming Objects and Error Handling

5. Understanding Advanced Database Programming Objects and Error Handling

Creating and using variables

Control-of-flow keywords

Creating and using views

Creating and using stored procedures

Creating and using user-defined functions

Creating and using triggers

Handling Transact-SQL errors

Summary

6. Performance Basics

6. Performance Basics

Components of SQL Server Database Engine

The SQL Server 2014 in-memory OLTP engine

Indexes

Query optimization statistics

The fundamentals of transactions

SQL Server 2014 tools for monitoring and troubleshooting SQL Server performance

Summary

Index

Index

Deleting data from SQL Server database tables

You use the DELETE statement to delete unwanted data from SQL Server database tables.

To execute the DELETE statement, the user must at least have the DELETE permission assigned on the target table.

The basic syntax for a DELETE statement is as follows:

[WITH <common_table_expression> [,...n]]
DELETE
[TOP (expression) [percent]]
[FROM] table_name | view_name | rowset_function
[WITH table_hint]
<outputclause>
[FROM table_source]
WHERE search_conditions

The following are the arguments of a DELETE statement:

WITH: This keyword specifies the CTE that you can reference in your DELETE statement
TOP: Specify this keyword to only delete a specific number or percent of rows from the top of the query
table_name | view_name | rowset function | common_table_expression: This specifies the name of the table, view, rowset function, or CTE containing the data that you want to delete
FROM: This keyword specifies the name of the table, view, or CTE from...

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Tech Concepts

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Programming languages

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