const char* sqlite3_column_decltype( sqlite3_stmt* stmt, int cidx ); const void* sqlite3_column_decltype16( sqlite3_stmt* stmt, int cidx );
stmt
A prepared statement.
cidx
A column index. The first column has an index
of zero (0).
The defined type name for the given result column.
These functions return the declared type associated with a
source column. This is the type that was given in the CREATE TABLE command used to
define the source table column. Returned pointers will remain
valid until sqlite3_finalize() is called on the statement,
or until one of these functions is called with the same column
index. SQLite will take care of all memory management for the
buffers returned by these functions.
Data is only available for result columns that are derived directly from a column reference. If a result column is defined as an expression or subquery, a NULL will be returned.