Returns valid Informix result identifier on success, or FALSE on error.
A "result_id" resource used by other functions to retrieve the query results. Sets "affected_rows" for retrieval by the ifx_affected_rows() function.
ifx_query() sends a query to the currently active database on the server that's associated with the specified link identifier.
Executes 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. Non-select
queries are "execute immediate". IFX_SCROLL and IFX_HOLD are
symbolic constants and as such shouldn't be between quotes. I you
omit this parameter the cursor is a normal sequential cursor.
For either query type the number of (estimated or real) affected rows is saved for retrieval by ifx_affected_rows().
If you have BLOB (BYTE or TEXT) columns in an update 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).
Example 2. Insert some values into the "catalog" table
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See also ifx_connect().