In SQL and PL/SQL there are two comment styles you can use, single-line and multi-line:
Multi-line comments begin with a slash and an asterisk (/*) and end with an asterisk and a slash (*/). the comment can span multiple lines.
single-line comments begin with — (two hyphens) and end with a line break. The comment text cannot […]
Lewis Cunningham’s “mini” tip about the NO_DATA_FOUND exception in PL/SQL is interesting. He shows how this exception is not always raised when you expect it to be raised. Here is another NO_DATA_FOUND gotcha you should be aware of:
A few weeks ago I wrote a post about how to Save/Download files to/from Oracle using ColdFusion. The example I used in the post was about saving Excel files as a BLOB in an Oracle table.
Today, I ran across an issue with file sizes greater than 244 KB. I was testing with a 7 MB […]
While reading the oracle-l mailing list, someone asked a question about (auto)commiting transactions in SQL Plus. Consider:
I had a problem with a flash CFFORM. It would not show up in Internet Explorer. However, Firefox had no problem displaying it. The flash form was part of an application using the Mach-II framework (which I’m converting now to Model-Glue). I had a general layout template in which I included the body of […]
Be careful when using ArrayDeleteAt. When an element is deleted, ColdFusion recalculates index positions. For example, in an array that contains the months of the year, deleting the element at position 5 removes the entry for May. After this, to delete the entry for June, you would delete the element at position 5 (not 6). […]