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What is database repository?
A repository is a collection of all data definition, data relationships and report formats, i,e; meta data of a database.
What are user views in database?
User views in a database are virtual tables that display specific data based on predetermined criteria set by the user. They allow users to access and manipulate data without directly interacting with the underlying database tables. In simpler terms, user views are like a fancy filter for data, making it easier for users to see only what they want to see.
What is data base catalog?
The database catalog of a database instance consists of metadata in which definitions of database objects such as base tables, views (virtual tables), synonym, value ranges, indexes, users, and user groups are stored.The SQL standard specifies a uniform means to access the catalog, called the INFORMATION_SCHEMA, but not all database follow this, even if they implement other aspects of the SQL standard. For an example of database-specific metadata access methods, see Oracle metadata.
What is the significance of the outer union operation in database queries and how does it differ from other types of joins?
The outer union operation in database queries combines the results of two queries, including all rows from both queries. This differs from other types of joins, like inner joins, which only include rows that have matching values in both tables. Outer union can help retrieve data from multiple tables even if there are no matching values, providing a more comprehensive view of the data.
What should be used to display and maintain records in a table in database?
A basic database is to use a spreadsheet to input data, such as, customers' name and address, etc. Such data can be sorted depending on what information the user wishes to see. Mail merge can be used to gather the data and print it out on the screen or through a printer onto paper, depending on the template initially created - usually in a word processor program. There are database programs that are more sophisticated. It really depends on what program and operating system you are considering using.
How do you delete all table in a database?
Unless you want to drop (delete) the entire database, you will must delete tables individually. To delete tables individually, execute the query "SHOW TABLES" in your database which will return a list of all table names. Iterate through that resultset and execute "DROP TABLE {$table_name}"
In Access all the tables reports forms and queries that are created are stored in a single file called what?
It is a database. The database is more than just the table, which is what some people think, but includes all those other components too.
How do you document a database?
Two standard ways to document a database are to create a relational diagram and a data dictionary.A relational diagram will display all the tables in a database with links to joining tables utilizing the primary and foreign keys. For a more detailed description visit- http://www.utexas.edu/its/windows/database/datamodeling/dm/erintro.htmlA data dictionary is a reference guide of all the tables and fields in a database and the use of each object.
Are tables and databases the same in access?
A table is really just one part of a database. The database consists of other things like the queries and reports. In general we do specifically think of the tables as being the database as that is where the data is stored and tables are central to everything else. As there can be multiple tables and other things as part of the system the term database is used to cover them all as one or as what is called a database management system.
How do you select all columns of all rows from all table?
depending on your database vendor, you should perform a loop of all tables and their columns and issue a dynamic SQL. for curr_table in all tables loop table_columns = get_columns(); dynamically execute "select table_columns from curr_table"; end loop;
What is the file used to store Microsoft Access forms and reports?
They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.They are all in the file along with the tables and other elements, as part of the database.
What is the central location for all database objects?
Office Button
What is database repository?
A repository is a collection of all data definition, data relationships and report formats, i,e; meta data of a database.
What is Database state?
The database state refers to the collection of data stored in the database at a specific point in time. It represents the current values of all data elements, tables, and relationships within the database. Changes to the database, such as insertions, updates, or deletions, can alter its state.
A database is made up of related?
A database is made up of related Schemas and Tables. A single database can have multiple schemas and each schema can have multiple tables inside it. All of these can be related to one another using referential constraints like foreign keys.
What is difference between dbms and rdbms?
DBMS stands for "Database Management Systems" it includes all Databases. RDBMS are a special Type of DMBS. "Relational Database Management Systems". On RDBMS you have Tables. Some Tables have are in relation to other Tables. This is needed to organize complex Data. Systems like MySQL, MS Access or MS SQLServer are RDBMS. Other Types are: ODBMS - Object Database Management System ORDBMS - Object Relational Database Management System HDBMS - Hirarchical Database Management System NDBMS - Network Database Management System
What are the Building blocks of a database?
Every database should contains values/datas represented in records(rows) and fields(columns). And records and fields stored in a table. So the main building blocks of a database is Table.
