Re: Invalid input syntax for integer

On Thu, 18 Aug 2011 11:07:58 -0400, Hans Edwin Winzeler <hewinzeler(at)gmail(dot)com>
wrote:

Oops, forgot this one:

> - How do I convert the varchar(20) that I have already imported into a
> numeric value?

you need to:
* add a real/float/numeric/... wanted column to the table,
* use a function that:
read a row,
get the varchar(20) column,
check for beginning with 0-[1-9],
strip '0-' from the string,
convert it into the wanted format,
update table's real/float/numeric/... column with the result,
loop until end of table.

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