LearntoWish

Java Autoboxing and Unboxing with examples

Java 1.5 introduced a special feature of auto conversion of primitive types to the corresponding Wrapper class and vice versa. Autoboxing: Automatic conversion of primitive types...

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SQL Insert Command Different Types

SQL Insert Command Different Types Different type of SQL command are used to perform same operation  need to use at different time as per our requirement.We...

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Alter table Modify

This command is used to alter table existing data type.By giving this command we can change the parameter of  an  table. ALTER TABLE table_name  MODIFY column_name...

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Alter Table Drop A Column

Syntax To DROP A COLUMN in an existing table, the Oracle ALTER TABLE syntax is: ALTER TABLE table_name  DROP COLUMN column_name; Example Let’s look at an...

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Linux Command

  Command Description cat [filename] Display file’s contents to the standard output device (usually your monitor). cd /directorypath Change to directory. chmod [options] mode filename Change...

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