David Meador has Published 163 Articles

DDBMS Advantages and Disadvantages

David Meador

David Meador

Updated on 20-Jun-2020 08:18:55

19K+ Views

The distributed database management system contains the data in multiple locations. That can be in different systems in the same place or across different geographical locations.As shown in the below example −The database is divided into multiple locations and stores the data in Site1, Site2, Site3 and Site4.The advantages and ... Read More

Conversion Functions in SQL

David Meador

David Meador

Updated on 20-Jun-2020 08:00:07

2K+ Views

There may be times when the SQL query was expecting some data type but it got another. In that case type conversion is done by SQL. This is implicit type conversion. However, sometimes the programmer explicitly converts one data type into another in a query. This is known as explicit ... Read More

Date and Time Functions in DBMS

David Meador

David Meador

Updated on 19-Jun-2020 14:23:27

5K+ Views

The date and time functions in DBMS are quite useful to manipulate and store values related to date and time.The different date and time functions are as follows −ADDDATE(DATE, DAYS)The numbers of days in integer form (DAYS) is added to the specified date. This is the value returned by the ... Read More

SELECT Statement and its Clauses in DBMS

David Meador

David Meador

Updated on 19-Jun-2020 14:13:22

4K+ Views

The select statement is used to get the required data from the database according to the conditions, if any. This data is returned in the form of a table.The basic syntax of the select statement is −Select column 1, column 2 ... column N From table_nameAn example of the select ... Read More

Spatial Databases

David Meador

David Meador

Updated on 19-Jun-2020 11:35:00

22K+ Views

Spatial data is associated with geographic locations such as cities, towns etc. A spatial database is optimized to store and query data representing objects. These are the objects which are defined in a geometric space.Characteristics of Spatial DatabaseA spatial database system has the following characteristicsIt is a database systemIt offers ... Read More

Data Warehousing and Data Mining

David Meador

David Meador

Updated on 19-Jun-2020 10:51:23

10K+ Views

Data WarehousingData warehousing is a collection of tools and techniques using which more knowledge can be driven out from a large amount of data. This helps with the decision-making process and improving information resources. Data warehouse is basically a database of unique data structures that allows relatively quick and easy performance ... Read More

Bootstrap 4 .d-flex class implementation

David Meador

David Meador

Updated on 18-Jun-2020 14:37:41

272 Views

Use the d-flex class in Bootstrap to create a flexbox container.Here, I have set two flex items −     One   Two You can try to run the following code to implement the .d-flex class −ExampleLive Demo       Bootstrap Example                             Understanding Flex             One       Two      

Bootstrap 4 .card-group class

David Meador

David Meador

Updated on 18-Jun-2020 14:35:59

411 Views

Use the card-group class to create a group of cards in Bootstrap 4 −                         Let us create a group of cards like a grid in Bootstrap −ExampleLive Demo       Bootstrap Example                             Group of Messages                             Argentina won convincingly!                                       Demo Text!                                       Do not cross!                                       I did it!                                       It worked!                    

Bootstrap .modal("toggle") method

David Meador

David Meador

Updated on 18-Jun-2020 14:33:59

2K+ Views

Use the .modal(“toggle”) method in Bootstrap to toggle the modal.As shown below, the modal generates on the click of a button −$(document).ready(function(){   $("#button1").click(function(){     $("#newModal").modal("toggle");   }); });Here is the button used above −   Modal One You can try to run the following code to implement the ... Read More

Container to create a grid of Bootstrap 4 cards like a group

David Meador

David Meador

Updated on 18-Jun-2020 14:31:59

356 Views

To set a container for Bootstrap card and set it like a group, use the card-group class.Use it and create a grid like the following with two Bootstrap cards −             Demo Text!                   ... Read More

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