1. Write a program to take as input rollnumber.code and perform the following DBMS action
2. Internally create your own data structure for a table and operate on the same

1. Create_table(tabname)-should create a table in a separate file
2. Add_attribute(t,attr_type,attr_name)-should add an attribute to the table data in the file
3. Insert_into(t,datarow)-should insert data into table data file
4. T=load_table (tabname)-should load the table from file
5. Save_table(t)-should save the table after insertion of rows from file
6. Save_table(t) should save the table after insertion of rows

For example,

Query)

Create table mytab 2

Int a

Float b

Insert into mytab(12,23,4)

Would have generated intermediate code as below code

Create table mytab

Add_attribute mytab int a

Add_attribute mytab float b

Insert into mytab(12,23,4)

The corresponding function call sequence when executing

Execute)

Create table (mytab)

t=load table(mytab)

add_attribute (t, int a)

add_attribute (t, float b)

t=load table(mytab)

save_table(t)

insert into (t,(12,23,4))

save_table(t)