Describe what would happen if there were no data dictionary for a given database.
The basic steps in planning a database are as follows:Collect informationIdentify key objects or entitiesModel key objectsIdentify the types of information for each object or entityIdentify the relationships between objects or entities
A database is a structured collection of data organized for efficient retrieval and updating. A datastore is a repository for storing and managing data, which can include databases as well as other types of data storage systems such as key-value stores or document stores. Essentially, a database is a type of datastore, but not all datastores are databases.
A database is a collection of information stored on a computer. There are several database programs you can use to build your own database; one of the simpler ones is Microsoft Access (part of some versions of Microsoft Office). There are also specialized databases that have been set up for a specific purpose (for example, you might find a database program for storing information about your record collection).
Database properties are also known as database attributes or characteristics. These properties describe the features and characteristics of the database, such as data types, constraints, relationships, and indexing among others. They are essential for defining the structure and behavior of a database system.
When you create a database, you define its structure by assigning names and data types to all the fields. This process involves specifying the tables, fields, and relationships between them to organize and store data efficiently. By defining the database schema, you establish the blueprint for how data will be stored and accessed within the database.
-[objects bar -[function for creating a table object -[an existing table
There are three database models. The three database models are as follows : 1) relational 2) network data 3) hierarchical
A schema describes the structure and organization of a database. It defines the tables, attributes, relationships, constraints, and data types that make up the database. It is like a blueprint that ensures data integrity and consistency.
The basic steps in planning a database are as follows:Collect informationIdentify key objects or entitiesModel key objectsIdentify the types of information for each object or entityIdentify the relationships between objects or entities
You would like to analyze data contained in an on-premises Access database. How will you do this with Power BI service?
Language that describes specific objects that are observable to all, in contrast to abstract descriptions
1) Document files 2) Worksheet files 3) Database files 4) Presentation files
Language that describes specific objects that are observable to all, in contrast to abstract descriptions
Three-Schema architecture is to separate the user applications and physical database.Internal level :- Describes the physical storage structure of the database.Conceptual level :- Describes the entities, data types, relationships, user operations, and constraints.External level :- It describes a particular user group is interested in and hides the rest of the database from that user group.
Such "objects" may include tables, indices, views, stored procedures, sequences, and perhaps a few other types of objects too.
A database is considered self-describing because it contains metadata that describes its structure and organization. This metadata includes information about the tables, columns, data types, relationships, and other properties of the database. This allows users and applications to understand and interact with the database without needing external documentation.
Types of Database in sql server 2005:- 1.Master Database 2.Tempdb Database 3.Model Database 4.MSDB Database 5.Resource Database