Hacker News·4 min read·hard
Nul Characters in Strings in SQLite
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basilikum✦AI Summary
This technical article explains how SQLite handles NUL characters within string values, noting that standard functions often truncate data at the first NUL. It provides examples of how this behavior can lead to unexpected query results and suggests methods for detecting embedded NULs.
SQLite allows NUL characters (ASCII 0x00, Unicode \u0000) in the middle of string values stored in the database. However, the use of NUL within strings can lead to surprising behaviors:
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