Memory Variables – Creation and Uses Simple in DBMS in hindi

Memory Variables – Creation and Uses Simple in DBMS in hindi

Memory variables, yaad rakhe jane wale variables, ek simple database management system (DBMS) ke context mein, program ke andar istemal kiye jate hain data ko store aur manipulate karne ke liye jo database ke saath interact karta hai.

DBMS के ये Topics के बारे में जानें :-

Memory Variables – Creation and Uses Simple in DBMS in hindi

Ye variables aam taur par database se prapt kiye gaye values ko hold karne ya database mein insert ya update karne ke liye istemal kiye jate hain.

Ek simple DBMS mein, memory variable ko create karne ke liye aap ek assignment statement ka istemal karte hain. For example, FoxPro mein:

makefileCopy codemyVariable = 10

Yahan, myVariable ek memory variable hai jo create kiya gaya hai aur usmein 10 ki value assign ki gayi hai.

Memory variables simple DBMS mein kai tarah ke upyog ke liye upyogi hote hain. Kuch aam upyog shamil hote hain:

  1. Data retrieval: Memory variables database se prapt kiye gaye data ko temporary roop mein store karne ke liye istemal kiye ja sakte hain. Iske through, aap database se retrieve ki gayi values ko program ke andar hold kar sakte hain aur unhe further processing ke liye istemal kar sakte hain.

  2. Data manipulation: Memory variables data manipulation ke liye istemal kiye ja sakte hain. Aap inka istemal mathematical operations, string concatenation, comparisons, aur doosre operations mein kar sakte hain jo database ke data ko modify karne ke liye zaroori hote hain.

  3. Data insertion and update: Memory variables database mein data insert ya update karne ke liye istemal kiye ja sakte hain. Aap naye records ko memory variables mein store kar sakte hain aur unhe database mein insert kar sakte hain. Isi tarah, aap existing records ko memory variables mein store karke unhe update kar sakte hain.

  4. Data transfer: Memory variables data transfer ke liye istemal kiye ja sakte hain. Aap database se retrieve ki gayi values ko memory variables mein hold kar sakte hain aur fir unhe dusre parts of the program mein pass kar sakte hain, jaise ki functions aur subroutines, jisse data sharing aur transfer ki suvidha milti hai.

Conclusion mein, memory variables simple DBMS ke context mein program ke andar data ko store aur manipulate karne ke liye istemal kiye jate hain. Ye variables data retrieval, manipulation, insertion, update, aur data transfer mein upyogi hote hain.

Leave a Comment