HTML
Picture/Image/Background Tag
<input type=”file”> Example : How to Browse/Choose an image/any other type of file in our html page. Example : How to Browse/Choose only png type of image file in our html page. Example : How to Browse/Choose Custom type or png and jpg type of image file in our html Read more…
HTML
Table Tag
Table Tag (<table> </table>) Example : How to create a typical table design to store data. Example : How to set background color in a table. Example : How to design table head, row & column of a table. Example : How to merge rows & column in a table to store data as Read more…
HTML
Input type Text Tag
Input Tag (input type=”text”) Example : How to create text box in html . Example : How to naming a text box in html . Example : How to add placeholder/shadow text message inside text box of html page. Example : How to shift character inside a text box with Read more…
SQL
Other DML Statements
Alter Table Statement Definition : Alter Table statement is used to change the structure of an existing table of a database i.e. this statement specifies how to add one or multiple new columns/fields/attributes, modify one or more existing columns/fields/attributes , drop or delete the existing columns from a table, rename Read more…
SQL
Update DML Statements
Definition : This statement is used to modify/change/update the existing record/s or data in the database. Syntax : UPDATE table–name SET(column–name1=value1, column–name2 =value2, column–name3=value3, column–name4=value4, column–name5=value5 ) ; Example : UPDATE employee SET(emp_id=”125M”, emp_name=”Rahman”, emp_addr =”Kolkata”, emp_dept=”Manager”, emp_dob=”05/22/2020″, emp_sal=20500, emp_mob=9334582186); UPDATE employee SET(emp_name=”Rahman”, emp_addr =”Kolkata”, emp_dept=”Manager”, emp_dob=”05/22/2020″, emp_sal=20500, emp_mob=9334582186 where emp_id= “105M”);
SQL
Delete DML Statement
Definition : This statement is used to remove one or more records permanently from the database table. Syntax : DELETE table-name; DELETE table-name where condition; Example : Problem : How to remove all data/records from a table permanently. SQL> Delete from employee; SQL> Delete * from employee; Problem : How Read more…
SQL
Select DML Query Statement
SELECT STATEMENT Basic Select Syntax : SELECT column_name1,column_name2… column_name_n FROM table-name[WHERE Clause][GROUP BY clause][HAVING clause][ORDER BY clause]; The SELECT query statement is used to retrieve stored data from a database in the form of table-like structure called result set. It is one of the largest use query/statement. Example : How Read more…
SQL
Insert into DML Statement
Definition : Insert into statement is used to add new or fresh record/s into an existing database table. Syntax : INSERT INTO table-name (field or attribute or column-name1, column-name2, column-name3, column-name4, column-name5) VALUES (value1, value2, value3, value4, value5 );(Press Enter) Example : For more Select query use this link
SQL
Create Table DDL Statement
Create Table Definition : This statement creates a new/fresh table with various column or field names and respective datatypes in a database. Syntax : CREATE TABLE schema_name.table_name (column_name1 data_type1 column_constraint1, column_name2 data_type2 column_constraint2, . . . table_constraints ); CREATE TABLE table_name ( column_name1 data_type1 column_constraint1, column_name2 data_type2 column_constraint2, Read more…