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excel styled table?

843804Nov 15 2004 — edited Nov 15 2004
I want to make a table similar to the look of what excel looks. Meaning the first column is grey and shows numbers 1 .... n and the first row is also grey with 1 .... m.

AFAIK this kind of control is called a grid, but there is no component called JGrid. The LayoutManager is not GridLayout is not what i want, because i would have to write the whole functionality of the table to it. Any suggestions on how to do this?

Comments

John Stegeman

Unique constraints automatically create (or "capture," if one already exists) an index, so just create the constraint - no need for a separate index. The underlying index may be unique or not, depending upon whether the constraint is deferrable. So, you can make the error go away by not creating the index in the first place

Having said that, it looks like you've discovered a situation where Oracle gets confused, and filing an SR with Oracle could either get that issue resolved or explained as to why it's not an issue.

John

1 person found this helpful
Solomon Yakobson
Answer

First of all you have show_orders in index and show_order in constraint. I'll assume it is a typo. Secondly, when you create constraint without specifying reinforcing index Oracle looks for existing index on same set of columns in ASCending order. If such index doesn't exists (and that's your case since one of your index columns is in DESCending order), Oracle tries to create one with same name as the constraint. That's why you get ORA-00955: name is already used by an existing object. In general, you can explicitly specify index name to force Oracle using existing index. But it will not help you. If you issue

alter table orders add constraint orders_year_show_uq unique(year, show_orders) using index orders_year_show_uq;

You'll get ORA-14196: Specified index cannot be used to enforce the constraint.

Anyway, Oracle doesn't support using DESC indexes for PK/UK.

SY.

Marked as Answer by Giovanni_66 · Sep 27 2020
Giovanni_66

Ok, thank you for your answer.

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Locked on Dec 13 2004
Added on Nov 15 2004
#swing
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