Oracle.FFI.QueryInfo

Definitions

prim__queryInfo : AnyPtr -> Int32 -> PrimIO AnyPtr

  Retrieve metadata for a query column.
  
  Parameters:
  - Statement handle.
  - Zero-based column index.
  
  Returns:
  - Pointer to an allocated dpiQueryInfo structure.
  - NULL on failure.
  

prim__queryInfoFree : AnyPtr -> PrimIO ()

  Frees query column metadata.
  

prim__queryInfoType : AnyPtr -> PrimIO Int32

  Retrieve the Oracle type number for a column.
  

prim__queryInfoName : AnyPtr -> PrimIO String

  Retrieve the column name from a dpiQueryInfo structure.
  
  Returns the Oracle column name exactly as reported by ODPI-C.
  

prim__queryInfoNullable : AnyPtr -> PrimIO Int32

  Returns whether the column accepts NULL values.
  
  Result:
  - 1 = nullable
  - 0 = not nullable
  

prim__queryInfoSize : AnyPtr -> PrimIO Int32

  Retrieve the declared size of the column.
  
  For character columns this typically corresponds to the maximum number of characters.