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nagavenkatan1807 Member since 2015 15 posts
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Posted: August 17, 2015
Last activity: August 17, 2015
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What about data if i delete a exposed column from a table

For example, I have few columns and a BLOB in a table where I have deleted one exposed column from the table along with data(of course a column can be deleted only when data is cleared).

Now the data of the column deleted exists in BLOB column or it is lost completely.

Let me understand what exactly when we expose a column. Will a copy of the column exists in BLOB or not when exposed. If a copy exists will it get deleted when the exposed column deleted.

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