In the context of a database query, this specific syntax is used to bypass authentication or pull information from other tables:
To secure a system against these types of attacks, developers should use Parameterized Queries (Prepared Statements) rather than building queries with string concatenation. This ensures that user input is always treated as data, not as executable code. -7728') UNION ALL SELECT 34,34,34,34#
: This operator combines the results of the original query with a new set of data. In the context of a database query, this
: These are "dummy" values used to determine the correct number of columns in the original table. For a UNION to work, the second query must have the exact same number of columns as the first. -7728') UNION ALL SELECT 34,34,34,34#