ProblemJavaScript function that takes in a 2-D array of numbers as the first and the only argument.Our function should find paths from the 2-D array by picking exactly one element from each row, and no two elements picked from adjacent rows should be in the same column. Out of all ... Read More

In this post, we will understand the difference between 3NF and BCNF.3NFThere shouldn’t be any transitive dependency.There shouldn’t be any non-prime attribute that depends transitively on a candidate key.It is not as strong as BCNF.It has high redundancy.The functional dependencies are already present in INF and 2NF.It is easy to ... Read More

In this post, we will understand the difference between MySQL and PostgreSQL.MySQLIt is a relational database management system.It is the product developed by Oracle Corporation.It is supported by Windows, Mac OS X, Linux, BSD, UNIX, z/OS, Symbian, AmigaOS.It can’t be extended.In this system, the phpMyAdmin tool gives the GUI.Mysqldump and ... Read More

In this post, we will understand the difference between WHERE clause and HAVING clause in SQL.WHERE ClauseIt is used to filter the records from the table based on a specific condition.It can be used without the ‘GROUP BY’ clause.It can be used with row operations.It can’t contain the aggregate functions.It ... Read More

In this post, we will understand the difference between T-SQL and PL-SQL.T-SQLIt is a Microsoft product.It is known as Transact Structure Query language.It gives a high degree of control to the developers/programmers.It works its best, and provides good performance with Microsoft SQL server.It is easy.It is simple to understand.It allows ... Read More

In this post, we will understand the difference between COMMIT and ROLLBACK in SQL.COMMITIt validates the modifications that are made by the current transaction.Once the COMMIT statement has been executed, the transaction can’t be rolled back using ROLLBACK.It occurs when the transaction is successfully executed.SyntaxCOMMIT;ROLLBACKIt removes the modifications that were ... Read More

In this post, we will understand the difference between linear regression and logistic regression.Linear RegressionIt helps predict the variable that is continuous, and is a dependent variable.This is done using a given set of independent variables.It extrapolates a line to find the value of dependent variable.Least square methods are used ... Read More

In this post, we will understand the difference between clustered index and non-clustered index.Clustered indexIt is quick.It requires less memory to perform operations.The index is the main data.A table can have one clustered index only.It has inherent ability to store data on the disk.It can store pointers to block not ... Read More

In this post, we will understand the difference between grant and revoke.GrantIt is a DCL command.It grants permissions to users on database objects.It can also be used to assign access rights to users.For every user, the permissions need to be specified.When the access is decentralized, permission granting is easier.Syntax:grant privilege_name ... Read More

In this post, we will understand the difference between SQL and T-SQL.SQLIt is a non-procedural language.Relational databases use SQL.It stands for structured query language.It uses query to view and manipulate data.DML and DDL operations are used- Data manipulation language, and data definition language.It is considered as an open-source language.It helps ... Read More