Library: Data/ODBC
Package: ODBC
Header: Poco/Data/ODBC/ODBCColumn.h
Direct Base Classes: Poco::Data::MetaColumn
All Base Classes: Poco::Data::MetaColumn
Member Functions: dataLength
Inherited Functions: isNullable, length, name, position, precision, setLength, setName, setNullable, setPrecision, setType, type
explicit ODBCColumn(
const StatementHandle & rStmt,
std::size_t position
);
Creates the ODBCColumn.
~ODBCColumn();
Destroys the ODBCColumn.
std::size_t dataLength() const;
A numeric value that is either the maximum or actual character length of a character string or binary data type. It is the maximum character length for a fixed-length data type, or the actual character length for a variable-length data type. Its value always excludes the null-termination byte that ends the character string. This information is returned from the SQL_DESC_LENGTH record field of the IRD.