Home. The Department for Education's register of educational establishments in England and Wales. Using the search box below select school type and location to quickly find establishments in your local area or use the advanced search page for further search criteria including establishments that are closed or planned to open in the future. From this page you are able to perform a simple search of all open establishments in England and Wales. If you leave a field blank, the default will include all establishments.
The 'Show me' drop down list allows you to select the type of establishment you wish to see in your search results. You have the ability to search by location, and can set a radius of inclusion. When searching by establishment name, often it is best to search for a single word in a name. Church of England is generally referred to as CofE in EduBase. For more advanced searches, or to find closed schools, please use the Advanced search page Contacting EduBase Disclaimer. Choosing a Database. Oracle, SQL Server, Microsoft Access, MySQL, DB2, Paradox. There are quite a variety of database products on the market today, making the selection of a platform for your organization's infrastructure a daunting project.
Define Your Requirements Database management systems (or DBMSs) can be divided into two categories -- desktop databases and server databases. Generally speaking, desktop databases are oriented toward single-user applications and reside on standard personal computers (hence the term desktop). Server databases contain mechanisms to ensure the reliability and consistency of data and are geared toward multi-user applications. These databases are designed to run on high-performance servers and carry a correspondingly higher price tag. It's important to do a careful needs analysis before you dive in and commit to a database solution. The needs analysis process will be specific to your organization but, at a minimum, should answer the following questions: Desktop Databases. The Computer Revolution/Databases/Database Models. Hierarchical Databases[edit] Hierarchical databases are the oldest database models. Unlike other models, they do not have a well documented history.
The hierarchical database was the first one developed and therefore was commonly used in the first mainframe database management systems.They were developed out of the 1950's and 60's Information Management Systems. Many banks and insurance companies, as well as government departments and hospitals ( for inventory and accounting systems) still use them today. The hierarchical database stores data in a series of records. These records have a set of field values attached to them. All instances of a specific record are collected together as a "record type". As an example, we could have a tree representing a university department, with subtrees representing staff members, students, courses, and facilities. A hierarchical database has a very structured form, as it allows no links between layers in different branches of the tree. 1. 2. 3. 4. 5. Relational database. In the relational model, each table schema must identify a column or group of columns, called the primary key, to uniquely identify each row.
A relationship can then be established between each row in the table and a row in another table by creating a foreign key, a column or group of columns in one table that points to the primary key of another table. The relational model offers various levels of refinement of table organization and reorganization called database normalization. (See Normalization below.) The database management system (DBMS) of a relational database is called an RDBMS, and is the software of a relational database. In relational databases, each data item has a row of attributes, so the database displays a fundamentally tabular organization.
The table goes down a row of items (the records) and across many columns of attributes or fields. Relational databases are both created and queried by DataBase Management Systems (DBMSs). Terminology[edit] Relations or Tables[edit] What are relational databases?" Databases have been a staple of business computing from the very beginning of the digital era. In fact, the relational database was born in 1970 when E.F. Codd, a researcher at IBM, wrote a paper outlining the process. Since then, relational databases have grown in popularity to become the standard. Originally, databases were flat. This means that the information was stored in one long text file, called a tab delimited file. Each entry in the tab delimited file is separated by a special character, such as a vertical bar (|).
Each entry contains multiple pieces of information (fields) about a particular object or person grouped together as a record. Lname, FName, Age, Salary|Smith, John, 35, $280|Doe, Jane, 28, $325|Brown, Scott, 41, $265|Howard, Shemp, 48, $359|Taylor, Tom, 22, $250 You can see that you have to search sequentially through the entire file to gather related information, such as age or salary. Here are some interesting links: Database Services | IT Department. Ten Common Database Design Mistakes. No list of mistakes is ever going to be exhaustive. People (myself included) do a lot of really stupid things, at times, in the name of “getting it done.” This list simply reflects the database design mistakes that are currently on my mind, or in some cases, constantly on my mind. I have done this topic two times before. If you’re interested in hearing the podcast version, visit Greg Low’s super-excellent SQL Down Under.
I also presented a boiled down, ten-minute version at PASS for the Simple-Talk booth. Before I start with the list, let me be honest for a minute. So, the list: Poor design/planning Ignoring normalization Poor naming standards Lack of documentation One table to hold all domain values Using identity/guid columns as your only key Not using SQL facilities to protect data integrity Not using stored procedures to access data Trying to build generic objects Lack of testing Poor design/planning Ignoring Normalization Are there always 12 payments?
Poor naming standards Security. What is database. Main » TERM » D » By Vangie Beal (1) Often abbreviated DB, a database is basically a collection of information organized in such a way that a computer program can quickly select desired pieces of data. You can think of a database as an electronic filing system. Traditional databases are organized by fields, records, and files. A field is a single piece of information; a record is one complete set of fields; and a file is a collection of records. An alternative concept in database design is known as Hypertext. To access information from a database, you need a database management system (DBMS) . (2) Increasingly, the term database is used as shorthand for database management system.