Toad truncating/rounding large Oracle numbers?

问题

We have a table with a 'price' field of type NUMBER(20,7).. In TOAD I do this:

update mytable set price = 1234567890123.1234567;

Then I do this select:

select price, to_char(price) from mytable

PRICE              TO_CHAR(PRICE)
1234567890123.12   "1234567890123.1234567"

Question is, why does TOAD truncate the result when displaying the NUMBER(20,7) field? The data is obviously there as it prints out with to_char.

??

回答1:

Toad limits numbers in the data grid to 15 digits. I believe this is because excel limits numbers to 15 digits as well (or used to limit them). You can turn on "scientific notation" in options -> data grids -> data, check box Display large numbers in scientific notation. That won't probably help, either.

回答2:

-> Right click on the data grid

-> Select "Grid Options..."

-> Under "Data Grids" chose "Data"

-> Uncheck "Display large numbers in Scientific Notation"

After doing these you need to close and open TOAD again. This worked for me in TOAD Version 8.6.0.38

回答3:

I had a similar problem, Toad was truncating/rounding my numbers when being displayed in grid view.

I found out that by using the Execute Statement button or by pressing F9 to run the query then the truncation/rounding would not be performed.

I hope that helps.

来源：https://stackoverflow.com/questions/3400393/toad-truncating-rounding-large-oracle-numbers