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## SQLite C Interface

## Name Of A Host Parameter

>     const char *sqlite3_bind_parameter_name(sqlite3_stmt*, int);

This routine returns a pointer to the name of the n-th SQL parameter in a prepared statement. SQL parameters of the form "?NNN" or ":AAA" or "@AAA" or "$AAA" have a name which is the string "?NNN" or ":AAA" or "@AAA" or "$AAA" respectively. In other words, the initial ":" or "$" or "@" or "?" is included as part of the name. Parameters of the form "?" without a following integer have no name and are also referred to as "anonymous parameters".

The first host parameter has an index of 1, not 0.

If the value n is out of range or if the n-th parameter is nameless, then NULL is returned. The returned string is always in UTF-8 encoding even if the named parameter was originally specified as UTF-16 in sqlite3_prepare16() or sqlite3_prepare16_v2().

See also: sqlite3_bind(), sqlite3_bind_parameter_count(), and sqlite3_bind_parameter_index().

### Invariants:

H13621 | The sqlite3_bind_parameter_name(S,N) interface returns a UTF-8 rendering of the name of the SQL parameter in the prepared statement S having index N, or NULL if there is no SQL parameter with index N or if the parameter with index N is an anonymous parameter "?".

See also lists of Objects, Constants, and Functions.

This page last modified 2008/12/09 18:44:04 UTC