Once upon a time, in the digital kingdom of Databasia, there lived a humble Keyword. It was a simple string of text, used by the townspeople to find records in the Great Ledger of the SQL Server.
The result was a glitch in the Great Ledger. For a brief moment, the walls of the database thinned, revealing the underlying structure of the kingdom's secrets. But the guards, known as the Sanitizers, quickly noticed the suspicious "FXcs" signature. They realized an injection attack was underway and rewrote the laws of the land to use , ensuring that no traveler could ever use a Keyword to smuggle empty voids into their realm again. {KEYWORD} UNION ALL SELECT NULL,NULL,NULL,NULL-- FXcs
When the Keyword was entered into the search bar of the royal palace, it didn't just look for a name or a date. Instead, the "UNION ALL" acted as a secret bridge, merging the honest search with a ghostly, empty row of four "NULL" voids. The double-dash at the end—the dreaded "Comment"—silenced the rest of the palace guards’ instructions, letting the traveler bypass the kingdom's security filters. Once upon a time, in the digital kingdom
One day, a mysterious traveler arrived at the gates, carrying a strange, long shadow known only as . For a brief moment, the walls of the