Database relationing in Foxpro in hindi

FoxPro me database relationing ka matlab hota hai ki aap alag-alag tables ya database files se data ko manage aur connect karte hain.

Database relationing in Foxpro in hindi

Yeh aapko tables ke beech mein relationships banane, data ko update aur append karne, aur specific information retrieve karne ke liye queries chalane me madad karta hai. Chaliye in concepts ko simple shabdon mein samjhate hain:

1. SET RELATION:

  • SET RELATION ko do tables ke beech mein ek connection banane jaisa samjha ja sakta hai. Isse lagbhag do notebooks ko ek common topic ya keyword ke aadhar par jodna hota hai. For example, agar aapke paas ek notebook students ke baare mein hai aur doosra grades ke baare mein hai, to aap unke beech mein ek relation set kar sakte hain, jaise student ID ka istemal karke.

2. UPDATE:

  • UPDATE command ka istemal existing data ko modify aur edit karne ke liye hota hai. Isse new notes add karna ya information ko correct karna notebook mein ki tarah hai.

3. APPEND FROM:

  • APPEND FROM ka matlab hai ki aap ek notebook se doosre source se new pages add kar rahe hain. Isse aap ek table se doosre table mein data add kar sakte hain.

4. COPY TO:

  • COPY TO ka matlab hai ki aap ek notebook ke page ka photocopy bana kar use alag se save kar rahe hain. Isse aap ek table ya selected data ka copy ek naye file mein bana sakte hain.

5. JOIN:

  • JOIN ka matlab hai ki aap alag notebooks se information ko ek combined notebook mein merge kar rahe hain. Isse aap related data ko ek common field ke aadhar par multiple tables se ek naye combined table mein la sakte hain.

6. Relation Query by Example:

  • Isse ek sawal puchne ke saman samjha ja sakta hai. Aap ek example dekar specify karte hain ki aap kis tarah ki information dhundh rahe hain, aur FoxPro aapke criteria ke mutabik data retrieve karta hai.

7. SQL (Structured Query Language):

  • SQL ek database ke liye universal language ki tarah hota hai. Iska istemal data retrieve, manipulate, aur manage karne ke liye queries likhne ke liye hota hai. Yeh aisa hai jaise aap apne database ke liye instructions ya questions likh rahe hain.

Saaransh mein, database relationing ka matlab hota hai ki aap data ko alag-alag sources se connect karte hain, update karte hain, aur organize karte hain, waisa hi jaise aap alag-alag notebooks mein jaankari ko organize aur manage karte hain. FoxPro aapko in operations ko efficient aur effective banane ke liye commands aur tools provide karta hai. SQL, dusri or, aapke database ke saath communicate karne ka powerful tareeka hai, jo aapko structured tarike se questions puchne aur tasks perform karne me madad karta hai.

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