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What's is better solution for Lock? Use Timestamp or "mark all fields"

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What's is better solution for Lock? Use Timestamp or "mark all fields"

Subject: What's is better solution for Lock? Use Timestamp or "mark all fields"
From: Luis Miguel Espinoza <email@hidden>
Date: Tue, 1 Nov 2005 11:40:10 -0600

Good day everybody,

I am new into WebObjects environment, and I want begin to the right way into webobjects programming.

I have some questions, and hope you answer me in base your experience a solutions.

1. Is better use Timestamp field as lock?? or May I use all fields as lock into EOModel?? 2. Is good practice use one field as PrimaryKey (as webobjects tutorial say) or must I use composed PrimaryKeys when I have to use them??

Thanks , and sorry if my question are begginer question??

Luis M.
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