Published: Fri, 21 Oct 2016 11:16:24 +0000
2016-10-21T11:16:24ZDatabase normalization can save storage space and ensure the consistency of your data. Learn the basics in this introductory article.
2016-10-21T11:16:24ZAre you new to the world of databases? Wondering where to get started? In this series of articles, we introduce you to the basics of database technology and help you get started in this exciting field.
2016-10-21T11:16:24ZOne of the most important concepts in databases is creating relationships between database tables. These relationships provide a mechanism for linking data stored in multiple tables and retrieving it in an efficient fashion. In order to create a link between two tables, you must specify a foreign key in one table that references a column in another table.
2016-10-21T11:16:24ZAs you may already know, databases use tables to organize information. Each table consists of a number of rows, each of which corresponds to a single database record. So, how do databases keep all of these records straight? Its through the use of keys.
2016-10-21T11:16:24ZReferential integrity is a database concept that ensures that relationships between tables remain consistent. Find more information here.
2016-10-21T11:16:24ZFacts and dimensions form the core of any business intelligence effort. In this article, we look at the development and use of facts and dimensions.
2016-10-21T11:16:24ZSQL Server constraints allow you to enforce rules in your database. These rules may affect business logic, database integrity and/or table structures. Each one plays an important role in your database architecture.
2016-10-21T11:16:24ZSecond Normal Form allows you to enhance the normalization of your database. In this article, we explore the requirements of 2NF and the process of normalizing your database.
2016-10-21T11:16:24ZWhat is a primary key? What is it for and how is it used? This article provides a definition of the term as well as examples.
2016-10-21T11:16:24ZThe Structured Query Language (SQL) is the language of databases. All modern relational databases, including Access, FileMaker Pro, Microsoft SQL Server and Oracle use SQL as their basic building block. In fact, it’s often the only way that you can truly interact with the database itself.
2016-10-21T11:16:24ZMicrosoft Access allows you to export data to a variety of formats for sharing and analysis. In this tutorial, we walk through the process of exporting an Access table to an Excel workbook.
2016-10-21T11:16:24ZDatabase dependencies are a topic that often confuses both students and database professionals alike. Fortunately, they are not that complicated.
2016-10-21T11:16:24ZThe Structured Query Language (SQL) is the set of instructions used to interact with a relational database. In fact, SQL is the only language that most databases actually understand. Whenever you interact with such a database, the software translates your commands (whether they are mouse clicks or form entries) into SQL statement that the database knows how to interpret.
2016-10-21T11:16:24ZLooking for advice on using the Structured Query Language? The About Databases SQL FAQ provides answers to the most frequently asked questions about SQL and databases.
2016-10-21T11:16:24ZMost large-scale databases use the Structured Query Language (SQL) to define all user and administrator interactions. This language offers a flexible interface for databases of all shapes and sizes.
2016-10-21T11:16:24ZRelationships allow you to describe the connections between different database tables in powerful ways. Once you’ve described the relationships between your tables, you can later leverage that information to perform powerful cross-table queries, known as joins.
2016-10-21T11:16:24ZBacking up your Microsoft Access databases is an important part of protecting your critical data. In this tutorial, we walk through the process of backing up an Access database, step-by-ste.
2016-10-21T11:16:24ZAre you overwhelmed by the large quantities of data that need to be tracked in your organization? Perhaps you're currently using a paper filing system, text documents or a spreadsheet to keep track of your critical information. If you're searching for a more flexible data management system, a database might be just the salvation you're looking for and Microsoft Access 2013 provides an excellent option.
2016-10-21T11:16:24ZIn this article, we begin our look at the first of three major normal forms -- first normal form (otherwise known as 1NF).
2016-10-21T11:16:24ZLooking for a book to help you get started with Structured Query Language? Need a new reference book for your shelf? Check out my favorite SQL books.
2016-10-21T11:16:24ZThe Structured Query Language (SQL)provides database users with the ability to create customized queries to extract information from databases. In an earlier article, we explored extracting information from a database using SQL SELECT queries. Let's expand upon that discussion and explore how you can perform advanced queries to retrieve data that matches specific conditions.
2016-10-21T11:16:24ZJust getting started with databases? Here's a rundown of the top things that I wish I knew before I got started in the field. These facts are guaranteed to make your life easier!
2016-10-21T11:16:24ZMicrosoft Access 2013 allows you to easily create professionally formatted reports automatically from information stored in a database. In tis tutorial, we're going to design a nicely-formatted listing of employee home telephone numbers for the use of management using the Northwind sample database and Access 2013.
2016-10-21T11:16:24ZThe SQL Server Import and Export Wizard is a component of SQL Server Integration Services (SSIS) that facilitates the transfer of information between your SQL Server databases and other data sources, including Microsoft Excel, Microsoft Access and flat files.
2016-10-21T11:16:24ZThe Data Control Language (DCL) is a subset of the Structured Query Lanaguge (SQL) that allows database administrators to configure security access to relational databases. It complements the Data Definition Language (DDL), which is used to add and delete database objects, and the Data Manipulation Language (DML), which is used to retrieve, insert and modify the contents of a database.
2016-10-21T11:16:24ZGlossary of database related terms, including definitions, explanations, examples, suggested reading, and other resources.
2016-10-21T11:16:24ZLooking for an easy way to move your Microsoft Access database to the cloud? Microsoft's Office 365 service provides a central location.
2016-10-21T11:16:24ZIn this series of Microsoft Access tutorials, we follow the database admins for Patrick's Widgets as they build a Microsoft Access database.
2016-10-21T11:16:24ZThe release of Access 2007 brings a new file format. The MDB database files weve known for over a decade are now slated to become historical relics. While Access 2007 continues to support MDB databases for backwards compatibility purposes, Microsoft has now introduced the new ACCDB file format as the future standard. Wondering if you should begin using the ACCDB format?
2016-10-21T11:16:24ZDatabases are designed to offer an organized mechanism for storing, managing and retrieving information. They do so through the use of tables. If youre familiar with spreadsheets like Microsoft Excel, youre probably already accustomed to storing data in tabular form. Its not much of a stretch to make the leap from spreadsheets to databases.
2016-10-21T11:16:24ZThe bulk copy (bcp) command of Microsoft SQL Server provides you with the ability to insert large numbers of records directly from the command line.
2016-10-21T11:16:24ZIt's important to do a careful needs analysis before you dive in and commit to a database solution. Learn the difference between desktop and server databases.
2016-10-21T11:16:24ZWhat is a query? Find out here! Databases.
2016-10-21T11:16:24ZDatabases depend upon keys to store, sort and compare records. If you’ve been around databases for a while, you’ve probably heard about many different types of keys – primary keys, candidate keys, and foreign keys. When you create a new database table, you’re asked to select one primary key that will uniquely identify records stored in that table.
2016-10-21T11:16:24ZSQL Server 2014 provides a wide range of security features designed to help you protect the confidentiality, integrity and availability of data stored in your enterprise databases. One of the most important tasks that database administrators perform is the implementation of role-based access control that limits the ability of users to retrieve and modify data in the database unless they have an explicit business need to do so.
2016-10-21T11:16:24ZAre you interested in tracing your family roots but don’t have a good place to store all of your genealogical information? While there are several full-featured family tree software packages on the market, you can also use a free Microsoft Access template to create your own genealogy database on your computer. Microsoft’s already done most of the work for you, so there is no programming knowledge needed to get started.
2016-10-21T11:16:24ZThe Northwind database contains some great sample tables, queries, reports and other database features. Here's how to install it.
2016-10-21T11:16:24ZLearn to retrieve information from your database with the SQL SELECT statement.
2016-10-21T11:16:24ZWhat is metadata? Find out here!
2016-10-21T11:16:24ZWith the release of Microsoft Office 365 in 2013, there were a number of questions about how it changed the different Microsoft programs, including Microsoft Access.
2016-10-21T11:16:24ZWant to learn how to use Microsoft Access? Find out about the fundamentals with this introduction.
2016-10-21T11:16:24ZWhat is a multivalued dependency? Find out here!
2016-10-21T11:16:24ZAll database management systems should share four characteristics: Atomicity, Consistency, Isolation and Durability.
2016-10-21T11:16:24ZThe BASE model offers a completely different alternative to our traditional notions of database engineering. It abandons the relational database guiding principles of atomicity, consistency, isolation and durability in favor of a relaxed approach that allows the flexible, efficient storage of data.
2016-10-21T11:16:24ZPassword protecting an Access database allows you to protect your sensitive data from prying eyes. Encrypted databases require a password to open. Users attempting to open the database without the correct password will be denied access. Additionally, users attempting to directly access the database’s ACCDB file will not be able to view any of the data contained within it, as the encryption obscures the data from view by those without the proper password.
2016-10-21T11:16:24ZAn attribute, when in regards to databases, deals with single data in an object. It is one of the basic terms used in SQL.
2016-10-21T11:16:24ZMicrosoft SQL Server 2008 offers administrators two choices of performing user authentication: Windows authentication mode and mixed authentication mode. Making the proper choice affects both the security and maintenance of your organization’s databases.
2016-10-21T11:16:24ZThe SELECT command is the most commonly used command in SQL. It allows database users to retrieve the specific information they desire from an operational database.
2016-10-21T11:16:24ZDesktop databases offer simple, flexible solutions for data storage and retrieval. They're often quite sufficient to meet uncomplicated database requirements for both small and large organizations. If you're not sure if a desktop database is right for you, try reading the Choosing a Database series of articles which cover both desktop and server databases in depth
2016-10-21T11:16:24ZLearn to retrieve information from your database with the SQL SELECT statement.
2016-10-21T11:16:24ZMany database users begin their adventure in the world of databases by creating a Microsoft Access database that meets the basic requirements of their organizations. Often, this is a dramatic improvement from an unwieldy collection of spreadsheets, text files or other documents that the organization previously used to manage information. However, eventually the business may outgrow that Access database and need to make the move to a more advanced database product.
2016-10-21T11:16:24ZWhat is the domain of a database? Find out here!
2016-10-21T11:16:24ZIn our first article, we looked at the basic requirements of 3NF. Here they are again to refresh your memory: meet the requirements of 1NF and 2NF and remove columns that are not fully dependent upon the primary key.
2016-10-21T11:16:24ZWould you like to learn SQL? This tutorial will introduce you to the basics.
2016-10-21T11:16:24ZTraces allow you to track the specific actions performed against a SQL Server databases. They provide valuable information for troubleshooting database issues and tuning database engine performance. In this tutorial, we walk through the process of creating a SQL Server Trace with SQL Server Profiler, step-by-step.
2016-10-21T11:16:24ZAre you familiar with the use of criteria in queries? They can help you limit results in interesting ways!
2016-10-21T11:16:24ZWhat is a foreign key? Find out here!
2016-10-21T11:16:24ZIs your Access database growing too large or unwieldy? Perhaps you need to allow more robust multiuser access to the database? Converting your Access database to Microsoft SQL Server might be the solution you’re trying to find. Fortunately, Microsoft provides an Upsizing Wizard in Access that makes it easy to convert your database. In this tutorial, we walk through the process of converting your database.
2016-10-21T11:16:24ZWhat is a full functional dependency? Find out here!
2016-10-21T11:16:24ZShould you use a spreadsheet or a database? Learn more in this article!
2016-10-21T11:16:24ZData mining allows you to find the needles hidden in your haystacks of data. Learn how to use these advanced techniques to meet your business objectives.
2016-10-21T11:16:24ZEntity Relationship diagrams provide database designers with a valuable tool for modeling the relationships between database entities in a clear, precise format. Learn how to create basic diagrams for your databases with this guide.
2016-10-21T11:16:24ZLooking for a job in the database field? This article provides the advice you need to get started.
2016-10-21T11:16:24ZCopying, renaming and deleting tables in Microsoft Access often causes confusion for database administrators. In this article, we clarify the differences between the three operations and explain how to perform each.
2016-10-21T11:16:24ZSo you've made the move from a spreadsheet to a database. You've set up your tables and painstakingly transferred all of your precious data. You take a well-deserved break, sit back and look at the tables you've created. Wait a second -- they look strangely familiar to the spreadsheets you've just disowned. Did you just reinvent the wheel? What's the difference between a spreadsheet and a database anyway?
2016-10-21T11:16:24ZThe software that allows a computer to perform database functions of storing, retrieving, adding, deleting and modifying data.
2016-10-21T11:16:24ZAccess offers users a way to print queries and their results. This provides users with a way to later review the results if they cannot remember which query was used.
2016-10-21T11:16:24ZLooking for a definition of a database relationship? Check out the About Databases glossary definition!
2016-10-21T11:16:24ZWhat is a Candidate Key? Find out here!
2016-10-21T11:16:24ZWhat is a functional dependency? Find out here!
2016-10-21T11:16:24ZYou can use SQL JOIN statements to combine data from three or more tables. Here you'll see how to accomplish this goal for an inner join.
2016-10-21T11:16:24ZAn entity-relationship (ER) diagram is a specialized graphic that illustrates the relationships between entities in a database.
2016-10-21T11:16:24ZThis Microsoft Access sample database provides tables containing information on the world's countries, cities and provinces. It is used to illustrate examples for a number of the articles on the About Databases site and also provides a good sample for students, professionals and others who are learning Microsoft Access.
2016-10-21T11:16:24ZLearn five ways that Microsoft Access databases can help your small business succeed!
2016-10-21T11:16:24ZLearn how to create a simple query in Microsoft Access.
2016-10-21T11:16:24ZDid you know that you can view and edit the SQL statements that drive every Microsoft Access database query? In this article, we take a look at the process of accessing the underlying SQL code and tweaking it to perfect Access queries.
2016-10-21T11:16:24ZDatabase normalization is one of the sacred cows of application development. Every undergraduate programming course you’ve taken or book you’ve read likely preaches about the importance of normalizing databases in an almost religious fashion. You’re made to feel like failure to normalize a database is tantamount to violating one of the laws of the universe. It’s time to challenge that truism. Sometimes it’s OK to denormalize your database
2016-10-21T11:16:24ZCopying tables in Microsoft Access can be tricky, not because it is particularly difficult, but because there are a number of things you need to consider before you begin. Naturally, there are a lot of things you need to avoid as well, because having two copies of the same table will significantly skew your data.
2016-10-21T11:16:24ZWhile forms are most useful when accessed directly in the database, there will be times when you will want to print them, for example when you want details about a single record or if you want to create instructions and include screenshots for entering data into a form.
2016-10-21T11:16:24ZSQL Server provides three different recovery models that allow you to specify the way SQL Server manages log files and prepares your enterprise for a disaster. Each of these models represents a different approach to balancing the tradeoff between conserving disk space and providing for granular disaster recovery options.
2016-10-21T11:16:24ZMicrosoft’s release of the SQL Server 2014 enterprise database management platform marks a major evolution in this popular product. Organizations seeking to license Microsoft's SQL Server database platform should have a clear understanding of the various editions available before making a purchase.
2016-10-21T11:16:24ZDo your databases contain fields where users have entered a mess of information in a variety of different formats? Microsoft Access input masks may help you alleiviate this inconsistency in your desktop databases. Input masks allow you to specify the format of allowable user input, preventing users from entering information in a form that does not meet your data quality requirements.
2016-10-21T11:16:24ZIn this course, we explore the basics of database design. Ten weekly lessons each explore a different issue in database design, culminating in a final case study.
2016-10-21T11:16:24ZAs a marketing professional you already deal with so many apps and software packages you are probably wondering why you should have to deal with something that is designed specifically for databases. After all, you probably already have a number of Excel spreadsheets to handle calculations, contacts and email templates in your preferred email software, and marketing campaigns recorded in a third program. This is exactly why you can benefit from an app or program that offers the organization of a database; it provides a centralized program to keep all of your information current from a single location instead of needing all of the different apps and programs.
2016-10-21T11:16:24ZThis free Access database of ZIP codes provides database designers with a valuable tool to assist in mapping ZIP codes to a city/state pair and even provides the latitude and longitude of that location.
2016-10-21T11:16:24ZSQL Server's snapshot replication technology allows you to automatically transfer information between multiple SQL Server databases.
2016-10-21T11:16:24ZJoin us as we walk through the process of creating database relationships in Microsoft Access.
2016-10-21T11:16:24ZWhat is a transitive dependency? Find out here!
2016-10-21T11:16:24ZThere are many applications where you may wish to add a date/time stamp to each record, identifying the time that the record was added to the database. It’s easy to do this in Microsoft Access using the Now() function. In this tutorial, I explain the process step-by-step.
2016-10-21T11:16:24ZMicrosoft SQL Server provides a robust replication facility to distribute and update data in a decentralized fashion.
2016-10-21T11:16:24ZWhat is a relation? Find out here!
2016-10-21T11:16:24ZWhat is a determinant? Find out here!
2016-10-21T11:16:24ZThe NoSQL movement is changing the way we think about databases. Instead of requiring that database developers follow the rigid principles of the ACID model, NoSQL allows a great deal of flexibility that provides a tremendous efficiency boost. This comes, however, at the cost of reduced enforcement of traditional database constraints.
2016-10-21T11:16:24ZIf you’re looking for some of the flexible query power of a database but don’t want to mess with relational database design, pivot tables may be just the technology you need. Chances are you’re already using one of the popular spreadsheet packages that include this technology, such as Microsoft Excel or the free Google Spreadsheets package.
2016-10-21T11:16:24ZWhat is Boyce-Codd Normal Form (BCNF)? Find out here!
2016-10-21T11:16:24ZOne of the most common uses of a database is generating mass mailings. In this tutorial, we examine the process of creating mailing labels using Microsoft Access 2013 using the built-in Label Wizard.
2016-10-21T11:16:24ZSample Excel Document. Databases.
2016-10-21T11:16:24Zk-means clustering is a data mining/machine learning algorithm used to cluster observations into groups of related observations without any prior knowledge of those relationships. The k-means algorithm is one of the simplest clustering techniques and it is commonly used in medical imaging, biometrics and related fields.
2016-10-21T11:16:24ZAre you ready to convert your unwieldy Excel spreadsheet to a flexible Access database? Let us walk you through the process!
2016-10-21T11:16:24ZMicrosoft provides quite a few prebuilt database templates to assist you in jumpstarting your database development process. In this tutorial, we'll walk through the process of creating an Access database using these templates.