Returns a integer
result_id for use by
ifx_do(). Sets affected_rows for retrieval by the
ifx_affected_rows() function.
Prepares query on
connection conn_id. For
"select-type" queries a cursor is declared and opened. The
optional cursor_type
parameter allows you to make this a "scroll" and/or "hold"
cursor. It's a bitmask and can be either IFX_SCROLL,
IFX_HOLD, or both or'ed together.
For either query type the estimated number of affected
rows is saved for retrieval by
ifx_affected_rows().
If you have BLOB (BYTE or TEXT) columns in the query,
you can add a blobidarray
parameter containing the corresponding "blob ids", and you
should replace those columns with a "?" in the query
text.
If the contents of the TEXT (or BYTE) column allow it,
you can also use "ifx_textasvarchar(1)" and
"ifx_byteasvarchar(1)". This allows you to treat TEXT (or
BYTE) columns just as if they were ordinary (but long)
VARCHAR columns for select queries, and you don't need to
bother with blob id's.
With ifx_textasvarchar(0) or ifx_byteasvarchar(0) (the
default situation), select queries will return BLOB columns
as blob id's (integer value). You can get the value of the
blob as a string or file with the blob functions (see
below).
See also: ifx_do().