Bøger af Djoni Darmawikarta

This book, IBM DB2 SQL for Beginners, is for you if you want to learn SQL in the IBM DB2 database the easy way. SQL (Structured Query Language) is the standard language you use to interact with a relational database management system (RDBMS). This book uses the free edition of the IBM DB2 database called Express-C Edition to show how SQL works in DB2.

MySQL stored routines are programs you write and compile. They are then stored in the database. Other programs, and other users, who have the permission, can then use your routines. This book is for you if you want to learn MySQL's stored routines the easy way. By particularly following the book examples you will quickly gain practical skills.

The book title implies that SQL Queries for R Users is for R users who need to get the data they need from a database. Loading large raw data from a database into R workspace is often unnecessary or even prohibitive. The book teaches you how to write SQL queries to retrieve precisely only the data needed from an SQL database. But, this book covers topics on metadata, which is equally important if not more than the SQL queries. To write an SQL query you must first know where the data is, the name of the tables and columns, their relationships, and the characteristics of the data. The book shows you how to identify this information. In Oracle SQL Developer ...... Explore Metadata Visualize Data Model Inquire Data Dictionary Build and Test Query Incrementally Wrap and Secure Query as Database View Deploy Generic SELECT query in R program

PL/SQL, integrated with the Oracle database, is the procedural extension of SQL. This book is for PL/SQL beginners. When they finish reading the book and trying its examples, they would have equipped themselves with basic PL/SQL skills to start writing PL/SQL programs in a real-world development project. The second edition has three new chapters (Records & Collection, Privileges, and PL/SQL in Java), and five new topics added in existing chapters (Transaction, DDL statements, Stored Programs, Package, and Trigger)

Ranking and Such for Analytics, the 3rd volume of the SQL and PL/SQL in Practice series, is for those who need to learn how to use the Oracle ranking and ranking related analytic functions. The analytic functions make it easier for us to write analytic queries.

If you are an R user who wants to move away from SQL and instead wants to manipulate data using the R's dplyr functions, then this book is perfect for you. dplyr is an R package available for download from the CRAN website, https: //cran.r-project.org You will learn the dplyr's equivalents of the SQL's DML statements (Data Manipulation Language): the SELECT, INSERT, UPDATE, and DELETE statements.

Most applications store their data in databases. Most of their databases are relational. SQLite is one of the most-used relational databases. It is an open source database that you can download from https: //www.sqlite.org/index.html To access data in a relational database we use SQL (Structured Query Language). If you are new to SQL and/or SQLite database, this is the book of choice. This is a practical book, teaching you SQL step-by-step using examples. If you take a glance at the table of contents, you will appreciate the comprehensive coverage of the book. When you finish the book, you'd be ready to apply your SQL skill in real-world projects.

Most applications store their data in databases. Most of their databases are relational. h2, an open-source database, is one of the most-used relational databases. You can download it free from http: //www.h2database.com/html/download.htmlTo access data in a relational database we use SQL (Structured Query Language).If you are new to SQL and/or h2 database, and want to learn SQL in h2, then this is the book of choice.It is a practical book, teaching you SQL step-by-step using examples. If you take a glance at the table of contents, you will appreciate the comprehensive coverage of the book.When you finish the book, you'd be ready to apply your SQL skill in real-world projects.

PL/SQL is the Oracle Procedural Language extension of SQL. PL/SQL is integrated within the Oracle database. A PL/SQL program can have both SQL statements and procedural statements. In the program, the SQL statements are used to access sets of data stored in a database, while the procedural statements are used to process individual piece of data and control the program flow, by applying, for example, the PL/SQL's if-then-else and looping structures. This book, Oracle PL/SQL Programming Fundamentals By Examples, is for PL/SQL beginners. If you have no prior or limited skill of PL/SQL, and you want to learn the Oracle PL/SQL programming language the practical way, then this book is perfect for you. When you finish reading the book and trying its examples, you would have equipped yourself with PL/SQL fundamental skills to start writing some PL/SQL programs for a real-world development project. Source codes listing of the examples are included in the Appendix of the book.

This book shows you how to use SQL within R using the sqldf package. You will learn the many facets of SQL and their use as the argument of the sqldf function. In addition to the default SQLite database, you will also learn how to use Oracle database to execute SQL statements specifically supported by Oracle SQL.

Introducing PL/SQL to SQL Users is for SQL users who do not have PL/SQL skill. If you wish you can write some procedural logic in a SQL statement, such as controlling the process flow using IF THEN ELSE logic, you need to consider using PL/SQL. This book, which introduces PL/SQL basic features, is a perfect starting point.

Progressive organizations, both businesses and public services, around the world have adopted analytics. Thanks to the recent availability of SQL analytic functions they can now do their analytics right on the database. You should jump on the bandwagon now! If you want to learn SQL analytic functions, this is the book of choice. It is a practical book, teaching you how to use the SQL analytic function step-by-step using examples.When you finish the book, you'd be ready to apply your analytics skill in real-world projects.

Seemingly plain, subquery has options that beginners often overlook their opportunities to solve the requirements for queries and data maintenance. Knowing where and which way to apply, you will enjoy having subquery in your armory. This book, by way of examples, shows you the variety of ways you can apply subqueries.

Data Modeling Round Trip Engineering Using Oracle Data Modeler

Learn the Basics in No Time, the first volume of the SQL and PL/SQL in Practice series, is for Oracle database programmers. If you have no prior or limited skill of SQL and PL/SQL, and you want to learn to use the two individually or together, then this book is perfect for you. SQL (Structured Query Language) is the standard database language. PL/SQL (Procedural Language/SQL) is the procedural language extension of SQL. PL/SQL is integrated within the Oracle database. When you install an Oracle database, PL/SQL is included in the installation. A PL/SQL program can have both SQL statements and procedural statements. In the program, the SQL statements are used to manipulate sets of data stored in a database, while the procedural statements are used to process individual piece of data and control the program flow by, for example, using the if-then-else and looping structures. The book has three parts. In Part I you will learn: how to store and maintain SQL data and to query the data; in Part II, the parts of a PL/SQL program and how to use if-then and loop control structures; and in Part III, how to embed, control the flow of SQL statements and process the rows returned by SQL query, within PL/SQL program. When you finish reading the book and trying its examples, you would have equipped yourself with SQL and PL/SQL fundamental skills.

This book is for you if you want to learn Oracle stored programs the easy way. By particularly following the book examples you will quickly gain practical skills. You write a stored program in PL/SQL. When you successfully compile the PL/SQL source code, the resulting program, which is a database object, is stored in the database (hence the name stored program). Other programs and other users that have the permission can then use the stored program.

Using Oracle Data Modeler: Creating Data Model from Scratch to Generating the Database is for those who want to learn how to create data models using the Oracle Data Modeler. The book is a tutorial for beginners. You will learn step-by-step and by-examples how to create a new data model and to generate the database from the model. The data model you will learn in this book is ER (Entity Relationship) data model. - An ER data model is made up of entities and their relationships. - An entity is something about the business that the application/system needs to keep its data (data about the entity). - An entity has attributes, which define the detail of the entity in terms of data items. The Oracle Data Modeler used in this book is a data modeling tool (software) from Oracle. - The free of charge GUI of the data modeling tool is rich on ER data modeling features. - You will go through the modeling steps supported by the tool. By the end of the book you will have acquired the practical skills to create logical model, engineer the logical to relational and physical models, and generate the DDL and the database, the complete cycle of forward engineering.

This book is your first step to learning PL/SQL in IBM DB2. Yes, it is PL/SQL in IBM DB2! PL/SQL used to be an exclusive database procedural language to the Oracle database, now is available in IBM DB2.

Windowing for Analytics, the 2nd volume of the SQL and PL/SQL in Practice series, is for those who want to learn how to use the Oracle analytic functions. The analytic functions make it easier for us to write analytic queries. This book is about the Oracle analytic functions that have windowing capabilities. You will learn analytic window, its clauses and options, by way of examples.

This introduction to SQL for the Oracle database begins by discussing exactly how data is stored and maintained in a relational database, familiarizing readers with SQL INSERT, UPDATE, and DELETE statements. The guide then discusses how to construct basic queries, choose an appropriate output, and how to create and use groups. Readers will also learn how to use joins to query data from multiple tables, how to create predefined views that can be stored in a database, and how to utilize the metadata of a database. Appendices round out the book, covering the various indexing techniques available in the Oracle database and discussing how to install Oracle Database Express Edition and list the Oracle built-in data types.