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What are Data Models in DBMS? In database management systems (DBMS), a data model is a conceptual representation of data structures, relationships, constraints, and rules used to organize, manipulate and store data. A data model provides a way to describe the structure of a database and how data is stored, retrieved, and updated. There are […]
February 15, 2023 | DBMS | No comments
The architecture of the DBMS affects how it is designed. When dealing with a sizable number of PCs, web servers, database servers, and other components connected by networks, the fundamental client/server architecture is used.A workstation and numerous PCs connected by a network make up the client/server architecture.How users connect to the database to complete their […]
February 11, 2023 | DBMS, Uncategorized | No comments
A database management system (DBMS) is a software system designed to manage the storage, retrieval, and manipulation of data in a database. The following are the components of a DBMS: Hardware Software Data Procedures Database Access Language 1. Hardware: The hardware components of a DBMS play a crucial role in storing, retrieving, and processing data. […]
February 11, 2023 | DBMS, Uncategorized | No comments
What is Data? Data is nothing more than raw, unfiltered facts and statistics that are stored or freely flowing through a network. When processed, data transforms into information, which gives it meaning. What is a Database? A database is a group of connected data that facilitates effective data retrieval, insertion, and deletion. The data is […]
February 9, 2023 | DBMS, Uncategorized | No comments
JOIN Clause Of SQL: Join allows you to combine two or more tables in SQL, based on the related column between them. It’s important to keep in mind that for this operation to work, there needs to be a common column in both tables. Based on this application of join there are three types of […]
February 7, 2023 | python | No comments
In SQL, the Limit clause is used to restrict or control the number of records in the result set that is generated by the query. SQL by default displays the necessary number of records beginning at the top, but it also supports the use of the OFFSET keyword. You can use OFFSET to get the […]
February 7, 2023 | python | No comments
In MySQL, sorting is primarily accomplished using the ORDER BY clause. That is, one can sort the results in either ascending or descending order using ORDER BY. If we use the ASC keyword, the ORDER BY statement will sort the results in ascending order in addition to its default behavior. The DESC keyword will be […]
February 7, 2023 | python | No comments
In a MySQL database, the where clause is used to filter the data according to the specified conditions. Using the where clause, you can retrieve, remove, or update a specific set of data in a MySQL database. MySQL WHERE Clause in Python: The WHERE clause has already been employed in one of our earlier tutorials: […]
February 7, 2023 | python | No comments
The Drop Table query affects the structure of the table rather than the data. It is used to remove an existing table. When you are unsure whether a table to be dropped exists or not, use the DROP TABLE IF EXISTS command. Syntax: Following is the syntax of the DROP TABLE query in MySQL − […]
February 7, 2023 | python | No comments
You must use the DELETE FROM statement to delete records from a MySQL table. To remove specific records, use the WHERE clause in conjunction with it. Syntax: Following is the syntax of the DELETE query in MYSQL − Note: that the WHERE clause in the preceding syntax is used to specify the condition to pinpoint […]
February 7, 2023 | python | No comments