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Jai Janardhan has Published 69 Articles
![Jai Janardhan](https://www.tutorialspoint.com/assets/profiles/13513/profile/60_63529-1512538711.jpg)
Jai Janardhan
105 Views
RENAME command is used to change the name of a MySQL table. Its syntax is as follows −RENAME table old_tablename to new_tablename2;ExampleIn the example below, we rename the table ‘testing’ to ‘test’.mysql> RENAME table testing to test; Query OK, 0 rows affected (0.17 sec) mysql> Select * from testing; ... Read More
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Jai Janardhan
311 Views
We can apply the NOT NULL constraint to a column of an existing MySQL table with the help of ALTER TABLE statement. SyntaxALTER TABLE table_name MODIFY colum_name datatype NOT NULL; Examplemysql> Create table test123(ID INT, Date DATE); Query OK, 0 rows affected (0.19 sec) mysql> Describe test123; +-------+---------+------+-----+---------+-------+ | Field ... Read More
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Jai Janardhan
22K+ Views
The advantages of the OSI model areIt is a generic model and acts as a guidance tool to develop any network model.It is a layered model. Changes are one layer do not affect other layers, provided that the interfaces between the layers do not change drastically.It distinctly separates services, interfaces, ... Read More
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Jai Janardhan
6K+ Views
The transport layer (Layer 4) is responsible for delivery of an entire message from an application program on the source device to a similar application program on the destination device.The main functions of the transport layer are as follows −It delivers a message from a specific process of one computer ... Read More
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Jai Janardhan
7K+ Views
A protocol is a set of rules and conventions agreed upon and followed by the communicating entities for data communication. A protocol outlines the what, how and when of a communication.The three aspects of a protocol are −Syntax − It defines the format of data that is to be sent ... Read More
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Jai Janardhan
6K+ Views
A connection-oriented service is one that establishes a dedicated connection between the communicating entities before data communication commences. It is modeled after the telephone system. To use a connection-oriented service, the user first establishes a connection, uses it and then releases it. In connection-oriented services, the data streams/packets are delivered ... Read More
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Jai Janardhan
23K+ Views
The basic computer hardware components that are needed to set up a network are as follows −Network CablesNetwork cables are the transmission media to transfer data from one device to another. A commonly used network cable is category 5 cable with RJ – 45 connector, as shown in the image ... Read More
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Jai Janardhan
994 Views
The basic idea of comb sort and the bubble sort is same. In other words, comb sort is an improvement on the bubble sort. In the bubble sorting technique, the items are compared with the next item in each phase. But for the comb sort, the items are sorted in ... Read More
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Jai Janardhan
791 Views
Widening refers to passing a lower size data type like int to a higher size data type like long. No casting is required in such a case.public class MyFirstJavaProgram { public static void main(String []args) { int a = 300; long b = a; System.out.println(b); } }
![Jai Janardhan](https://www.tutorialspoint.com/assets/profiles/13513/profile/60_63529-1512538711.jpg)
Jai Janardhan
774 Views
It is possible that the older version of SAP B1 may not show you all the fields of all the forms. If you have the latest version, you should be able to see the data sources that are mapped to given field. You need to open the forms in SAP ... Read More