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Switching user using sudo command in Linux shell

Posted on 20th May 20198th July 2019 by RevisitClass

Sudo command The sudo command is used to switch to another user.It will give the special priviledges to the user.It

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Shell Script
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How to check the table definition or view definition of table in Teradata

Posted on 2nd May 20197th May 2022 by RevisitClass

SHOW Table : Some time we want to check the table definition such as number of columns ,data type of

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Teradata
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How to create a view for a table in Teradata

Posted on 6th April 20197th May 2022 by RevisitClass

View creation in Teradata: View is a logical table that shows the result set of SQL statements. It is used

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Teradata
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Select few sample records from a Teradata table using Sample function

Posted on 28th March 20197th May 2022 by RevisitClass

Sample function in Teradata The Sample function is used in the SELECT query to return the random number of rows.It

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Teradata
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Convert bytes to KB,MB and GB using Java Program

Posted on 26th March 201914th May 2022 by RevisitClass

In many cases, we might get the memory or size of the file/table in bytes.The simple java program can able

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Java
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Execute the shell commands using ProcessBuilder in Java

Posted on 26th March 201917th December 2021 by RevisitClass

We can execute the shell commands using the Java.lang.ProcessBuilder class in Java.Lets see the program to execute the shell commands.

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Java
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Convert String to Int in Java with examples

Posted on 25th March 20197th May 2022 by RevisitClass

Integer.parseInt() We can convert the String value to int in Java using Integer.parseInt() method. If the String variable contains only

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Java
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Implementation of Linked List in C++ with examples

Posted on 24th March 201930th January 2022 by RevisitClass

Linked list in C++ Linked list is one of the data structure that used to overcome the limitation of array.

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C++
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Hive describe command to check the meta data of the Hive table

Posted on 21st March 201915th January 2022 by RevisitClass

We can see the Hive tables structures using the Describe commands. This command shows meta data about the hive table

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Hadoop
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How to check the table size using query in Teradata

Posted on 17th March 20197th May 2022 by RevisitClass

Table size in Teradata: DBC.ALLSPACE is the system table used to find the space occupied for each table or database

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Teradata
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