Introduction to SQL
The SQL -92 wildcards are ____ and ____ .

asterisk (*); percent sign (%)
underscore(_); question mark (?)
percent sign (%); underscore (_)
question mark (?); asterisk (*)

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Introduction to SQL
The wildcard in a WHERE clause is useful when?

An exact match is not possible in a SELECT statement.
An exact match is not possible in a CREATE statement.
An exact match is necessary in a CREATE statement.
An exact match is necessary in a SELECT statement.

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Introduction to SQL
In an SQL SELECT statement querying a single table, according to the SQL-92 standard the asterisk (*) means that:

None of these
all columns of the table are to be returned.
all records meeting the full criteria are to be returned.
all records with even partial criteria met are to be returned.

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