Which of the following is condition where indexes be avoided?

When should indexes be avoided?

Indexes should not be used on small tables. Tables that have frequent, large batch updates or insert operations. Indexes should not be used on columns that contain a high number of NULL values. Columns that are frequently manipulated should not be indexed.

Which of the following states the correct situation in which indexes should not be used in SQL?

When there are a lot of NULL values in a column, indexed should not be used.

For which of the following data type we Cannot create index?

Data types You cannot use CREATE INDEX to create an index on a column with BIT data. Only the default index, CMP index, or WD index can be created on CHAR and VARCHAR data with more than 255 bytes.

What are the condition to create an index in SQL?

To create an index in your own schema, one of the following conditions must be true:1The table or cluster to be indexed must be in your own schema.2You must have the INDEX object privilege on the table to be indexed.3You must have the CREATE ANY INDEX system privilege.