Ξ�Ο�Ο�Ο�Ξ·Ο&#655Ξ�Ο�Ο�Ο�Ξ·Ο�Ξ· Ξ³ΞΉΞ± mysql - php

V13 v13 at v13.gr
Fri Dec 18 13:50:54 EET 2009


On Wednesday 16 of December 2009, rouvas at di.uoa.gr wrote:
> Συμβουλή:
> Ποτέ μα *ποτέ* μα εντελώς ΠΟΤΕ μην βασίζεσαι στα strings για συσχετίσεις
> μεταξύ οποιονδήποτε σχέσεων.

Giati?

Apo dikia moy empeiria, pera ton baseon, mporo na po oti ta strings mporeis na 
ta kaneis para poly oraio indexing, toso sketa oso kai me hashing.

Oson afora tis baseis: An skopeveis na kaneis syxnh taksinomisi me basi kapoio 
string pedio mallon tha exeis idi ena index gia ayto to pedio, opote kai den 
allazei kati me to na to exeis os kleidi/unique h os meros kleidioy/unique 
(edo mplekei ligo).

<<V13>>


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