You can change the data type of any column if all rows of the column contain nulls. However, if you change the data type of a column in a materialized view container table, then Oracle Database invalidates the corresponding materialized view.
US Economy. Definition: A stock market crash is when stock indexes lose more than 10% in a day or two. The broad indexes are the Dow Jones Industrial Average, the S&P 500, and the NASDAQ. The rapidity of the decline differentiates it from a stock market correction. That's a 10% loss over days, weeks or even months.
No. 5: Leisure sector stocks Lastly, a specific sector that can be among the worst during a stock market crash is leisure. Leisure companies depend on a strong economy and growing investment to drive consumers' desire to take vacations and treat themselves.