A database is only as useful as the data it contains. Validation helps prevent invalid or inconsistent data from getting stored. At the most elementary level, it could be as simple are requiring a given element to only contain numerical data. More complex validation rules might entail a list of valid values, cross-field edits (if field A contains "xyz", then field B cannot contain "abc") and various more complex rules known as constraints (such as… Read More
Yes, a database is a very good program for collecting, tracking and reporting data.
In the structure of a database, the part consisting of several uniquely named components called data fields. Several data records make up a data file, and several data files make up a database.
Can any one please tell me the difference between database management and data warehousing in brief?
Database management involves designing the actual tables in a database and making sure that the database is up and running smoothly. This is performed by a database administrator (DBA). Data warehousing involves storing data in a database. The DBA designed the database, but someone else (or a program that someone else is running) is actually inserting the data into the database.
While retrieving data from a database, we use SQL (Structured Query Language) language which enables developers to query data. A SQL Select statement which retrieves data from database has a WHERE clause where we can add criteria to filter data based on field values
MS Access is database management software. It's especially useful for connecting data from multiple sources for a relational database, form-based data entry, and multiple users entering data simultaneously.
A form is a database object that you can use to create a user interface for a database application. A "bound" form is one that is directly connected to a data source such as a table or query, and can be used to enter, edit, or display data from that data source.
As part of validating data, you can set up lists of valid data from which a value can be chosen. These are knowns as validations lists. You may want to have a list of regions from which one can be be used to put into a cell. You create the list by putting the values into a set of cells. Then, choosing the Data Validation option, you choose "List" in the validation criteria. Then you… Read More
A database, as used by a computer, is a software programme that is used to store data (information). A card index is also a database, written on pieces of card - so, technically, a card index is a physical thing (hardware?), possibly.
You can set up any database for real estate. If you have large data, better go for no-sql database.
A centralized database contains all the data tables in one place which all users access. A decentralized database creates copies of the database design in different areas and any given copy contains only that data which is relevant to its particular users.
A database is used in stock control - often triggering a reorder automatically when stock in a particular line reaches a certain low level. Within modern cash systems (EPOS) database are used not just for inventory, replenishment but also for sales data tracking, financial data tracking and also they communicate across epos systems to back office units to maintain storge of such data as barcodes, item specific code, legislative tax data references and now can… Read More
Yes you can. Spreadsheets are normally laid out in columns and rows with headings, like you would have fields and records in a database. With that structured layout, data in Excel can easily be exported to various database applications. There are various approaches you can take, like directly exporting them or saving the data as a text file and opening it for importing into a database.
Logical Structure of database is know as database schema. All database entities are defined and relation between then is represented in structured way. It includes all constraints to be apply on each identity.
Basically its used normally at point of input. I.e when the user enters data. The field is set to accept a certain type of data for example a date. the format is dd/mm/yyyy (European format). In most systems you can set the date input format automatically however, the validation is the the date in a programmed field can be the format entry and if its different to that shown for instance 12/03/15 the entry is… Read More
The most likely type of data you will store in a database is text data. Suppliers, customers, employees, product descriptions and so on are all largely composed of text. Although a good proportion of any database will also be composed of numeric data, that data still has to be associated with something a bit more tangible. For instance, a product's selling price would be useless if we didn't know which product it related to, which… Read More
Which of the following information technology jobs involves managing data and making sure only authorized people can access that data when needed?
Centralized design is one of the two major methods of designing a networked database, the other being distributed design. In a centralized design, all the database table schema and the data reside in one place where all of the users access it (i.e., central to the users.) Conversely, a distributed design replicates the schema in multiple places and segments the data amongst the multiple sets of tables. Each group of users accesses a particular distributed… Read More
When you link to data in a worksheet the data appears as a table in the Access database but is it maintained in its original form in Excel?
The data will be in its original form, but any changes in the data will be reflected in the Excel document, as will changing the Excel document affect the Access table. It is the same data when it is linked, not copied.
Record is more a term related to databases than to spreadsheets. However, as you can do some database work using a spreadsheet, then it can be a term used in a spreadsheet. A record in a database is a row of related data, such as the name, age, address and phone number of a person. If it is done in a spreadsheet, with each set of data on a separate row, it can be regarded… Read More
this means a table when you can record data ie name,DOB,school,address,animals and family member :}
Yes, tables store all the data. Things like the forms, reports and queries are all using data that originally comes from the tables. When you enter data using forms, the data is being stored in the tables. Forms, queries and reports can process data to get information, like getting totals. The underlying source is still the tables.
In many cases, each company has its own database (or several databases), so I would estimate that there are about as many databases as there are companies. If you are referring to the DBMS - the software that manages the databases - you can see a list of the most common ones in the following Wikipedia articles: * Comparison of relational database management systems * Comparison of object database management systems * Comparison of object-relational… Read More
Strictly speaking, it is meaningless with respect to databases themselves. However, many database management system (DBMS) softwares have additional applications over and above that necessary for the creation and use of the database itself. Forms are one such application, which allows the designer to create a user-friendly layout for an end-user to enter, vies and update database data.
Data modelling performs much the same task as general and detail design in programming. It lays out the relationships between tables in a relational database as well as the major elements of the tables (elements, foreign keys, etc.)
Database designers are a type of software engineer that specializes in databases. Therein they will investigate the requirements of the end user platform, design the system interface to create, edit and report on stored data , design user interfaces, design reports, structure and develop an optimized platform.
The answer depends on what you managed to do in the first step. The first step could be data validation end editing. This would be followed by creating scatter plots to determine the relationship between the dependent and the other variables.
Microsoft Publisher - is a design program - for creating brochures, pamphlets, personalised stationery and other paper products. It is not intended as a database.
In reality it is just a table that can provide you with your record source. However, you can use queries to provide the data in different ways and do some processing on it that can be used. A form can present the data in different ways and do some processing, as can a report. However, they are still all getting their data initially from table, even when one query is based on another, or a… Read More
DBMS is database management. Database is where the information is stored.
There are lot of Database Management systems that run on Linux, but MySQL and PostgreSQL seem to be the mostly used Database Management systems.
Reports can give you structured print-outs of your data. They can allow you to get different types of details, like grouping data and getting sub-totals and totals. They can allow you to pick just certain data and do things like present it in a sorted order. You can have different kinds of headings on a report, making it clearer what it is the report is showing. This can all make the data more meaningful and… Read More
A validation rule must allow all possible valid answers. For example, a person's age must be, say, between 0 and 130 years. An age less than zero, or more than 130, would be rejected. However, there is no way to automatically verify that the age is correct. For example, if my age is 48 years, and somebody types 58, or 38, instead, the only way to verify that this is correct is to go back… Read More
Almost all businesses these days produce and rely on massive amounts of data: employees, customers, inventory and so on. A DBMS facilitates storage, retrieval and analysis of this data, allowing trend analysis, identifying potential inventory shortages and the like.
It means a database that contains information about the teachers in a country. A database is a collection of information.
An e-database is an organized collection of information, of a particular subject or multi-disciplinary subject areas. The information of an e-database can be searched and retrieved electronically.
Is it correct to call it players database or player database or are both correct when a database consists of information about different players?
Both are correct.
Ratification of an amendment refers to the formal validation of a proposed law.
Keyfields crosslink related records in different tables of Relational Databases. But in other kinds of databases (e.g. navigational databases, object oriented databases, flat file databases) other different mechanisms are used or the linking of records is not supported.
It is a database that is owned by a private company or organisation, and is not accessible to the public.
A database is composed of one or more records.
Science requires objective validation, not just words.
One way to do it would be as follows: * Read the entire file to a String variable * Write the data before the insertion point * Write the data to be inserted * Write the data after the insertion point Probably the following would be more efficient: * Read the part of the file after the insertion point, to a String variable * Write the data to be inserted * Write the data after… Read More
Entering data into tables in Access is similar to entering data in Excel. To work with records, you'll have to enter data into cells. - In the Records group on the Home tab, click the New command. - On the Record Navigation bar at the bottom of the window, click the New record button. - Begin typing in the row below your last added record. Quick Tip : Always remember to save your work ;)
Yes they can. It is a very common way of exchanging data from different kinds of applications. The delimiters, such as a comma, act as a way of telling the database which items go into fields and they tell spreadsheets which items go into cells. So a piece could be in a text file and up to the first comma it will go into the first field or cell. Between the first and second comma… Read More
Use different sheets as the different tables of a relational database. It will be much more cumbersome than using a real relational database program, but it can be done.
That depends on the nature of the text and what way you want it to be in columns. If it is just a large block of text that you want into newspaper-styled columns, then word processors and desktop publishers have the facility to do that. If you want text that is data, like names and addresses etc. and you want to break the data up so that all the names are in a column and… Read More