Note: For numeric data we dont use (" ") inverted comma and for string data we use (" ") inverted comma .
Update Statement lets you to update existing one or more records in the database table depending on condition. Example "Where student ID = 1 " - It is a condition, means update student record whose ID number is = 1.
In a single database we can create any number of data tables.
Open Up Connection to Database First thing we need to open up a connection to a database.
So let’s do that step by step In cs file import the SQL namespaces on top .
There are commonly used databases in our IT Zone SQL - Microsoft SQL Server Oracle - Oracle RDBMS or simply as Oracle MYSQL - Open Source Freeware MSACESS - Microsoft Access Postgre SQL - ORDBMS SAP - To manage customer relationship and other business operations Fox Pro - Database IBM DB2 - IBM Database by IBM Now in further we will try to understand about data manipulation statements i.e. Select statement let you to retrieve the data from the database table.
For ex : In simple words if you want to pick up single student record, multiple student records or all students records from the table database you just need to use "Select" statement.