Difference between revisions of "RDO FETCH FIELD()"

From Recital Documentation Wiki
Jump to: navigation, search
 
(7 intermediate revisions by 2 users not shown)
Line 1: Line 1:
{{YLM to do}}
 
 
==Purpose==
 
==Purpose==
Return an object containing information about a field from a recordset
+
Return an object containing information about a field from a result set
  
  
 
==Syntax==
 
==Syntax==
RDO_FETCH_FIELD(<object>,<expN>)
+
RDO_FETCH_FIELD(<object> [, <expN>])
 +
 
 +
MYSQL_FETCH_FIELD(<object> [, <expN>])
  
  
 
==See Also==
 
==See Also==
 
[[RDO_AFFECTED_ROWS()]], [[RDO_CLOSE()]], [[RDO_CONNECT()]], [[RDO_DATA_SEEK()]], [[RDO_ERRNO()]], [[RDO_ERROR()]], [[RDO_EXEC()]], [[RDO_FETCH_ARRAY()]], [[RDO_FETCH_ASSOC()]], [[RDO_FETCH_LENGTHS()]], [[RDO_FETCH_OBJECT()]], [[RDO_FETCH_ROW()]], [[RDO_FIELD_FLAGS()]], [[RDO_FIELD_LEN()]], [[RDO_FIELD_NAME()]], [[RDO_FIELD_SEEK()]], [[RDO_FIELD_TABLE()]], [[RDO_FIELD_TYPE()]], [[RDO_FREE_OBJECT()]], [[RDO_FREE_RESULT()]], [[RDO_GET_CLIENT_INFO()]], [[RDO_GET_HOST_INFO()]], [[RDO_INFO()]], [[RDO_LIST_DBS()]], [[RDO_NUM_FIELDS()]], [[RDO_NUM_ROWS()]], [[RDO_PING()]], [[RDO_QUERY()]], [[RDO_REAL_ESCAPE_STRING()]], [[RDO_RESULT()]], [[RDO_SELECT_DB()]], [[RDO_STAT()]], [[RDO_THREAD_ID()]], [[RDO_UNBUFFERED_QUERY()]]
 
[[RDO_AFFECTED_ROWS()]], [[RDO_CLOSE()]], [[RDO_CONNECT()]], [[RDO_DATA_SEEK()]], [[RDO_ERRNO()]], [[RDO_ERROR()]], [[RDO_EXEC()]], [[RDO_FETCH_ARRAY()]], [[RDO_FETCH_ASSOC()]], [[RDO_FETCH_LENGTHS()]], [[RDO_FETCH_OBJECT()]], [[RDO_FETCH_ROW()]], [[RDO_FIELD_FLAGS()]], [[RDO_FIELD_LEN()]], [[RDO_FIELD_NAME()]], [[RDO_FIELD_SEEK()]], [[RDO_FIELD_TABLE()]], [[RDO_FIELD_TYPE()]], [[RDO_FREE_OBJECT()]], [[RDO_FREE_RESULT()]], [[RDO_GET_CLIENT_INFO()]], [[RDO_GET_HOST_INFO()]], [[RDO_INFO()]], [[RDO_LIST_DBS()]], [[RDO_NUM_FIELDS()]], [[RDO_NUM_ROWS()]], [[RDO_PING()]], [[RDO_QUERY()]], [[RDO_REAL_ESCAPE_STRING()]], [[RDO_RESULT()]], [[RDO_SELECT_DB()]], [[RDO_STAT()]], [[RDO_THREAD_ID()]], [[RDO_UNBUFFERED_QUERY()]]
 +
  
 
==Description==
 
==Description==
The RDO_FETCH_FIELD() function is used to return an object containing information about a field from a recordset.
+
The RDO_FETCH_FIELD() function is used to return an object containing information about a field from a result set.  If the column number, <expN>, is omitted, the result of the previous [[RDO_FIELD_SEEK()]] is used.
  
  
Line 18: Line 20:
 
!Keywords||Description
 
!Keywords||Description
 
|-
 
|-
|<object>||Resultset
+
|<object>||Result set
 
|-
 
|-
|<expN>||Column number]
+
|<expN>||Column number
 
|-
 
|-
 
|}
 
|}
Line 27: Line 29:
 
==Example==
 
==Example==
 
<code lang="recital">
 
<code lang="recital">
 +
conn = rdo_connect("recital", "localhost", "?", "?","southwind")
 +
if conn > -1
 +
    res = rdo_query("select * from shippers", conn)
 +
    for i = 0 to rdo_num_fields(res)-1
 +
        arr1 = rdo_fetch_field(res,i)
 +
        print_r(arr1)
 +
    next
 +
    rdo_close(conn)
 +
endif
 
</code>
 
</code>
 +
  
 
==Products==
 
==Products==
Line 34: Line 46:
 
[[Category:Functions]]
 
[[Category:Functions]]
 
[[Category:SQL]]
 
[[Category:SQL]]
 +
[[Category:Remote Data Connectivity]]
 
[[Category:Remote Data Connectivity Functions]]
 
[[Category:Remote Data Connectivity Functions]]

Latest revision as of 15:45, 2 August 2010

Purpose

Return an object containing information about a field from a result set


Syntax

RDO_FETCH_FIELD(<object> [, <expN>])

MYSQL_FETCH_FIELD(<object> [, <expN>])


See Also

RDO_AFFECTED_ROWS(), RDO_CLOSE(), RDO_CONNECT(), RDO_DATA_SEEK(), RDO_ERRNO(), RDO_ERROR(), RDO_EXEC(), RDO_FETCH_ARRAY(), RDO_FETCH_ASSOC(), RDO_FETCH_LENGTHS(), RDO_FETCH_OBJECT(), RDO_FETCH_ROW(), RDO_FIELD_FLAGS(), RDO_FIELD_LEN(), RDO_FIELD_NAME(), RDO_FIELD_SEEK(), RDO_FIELD_TABLE(), RDO_FIELD_TYPE(), RDO_FREE_OBJECT(), RDO_FREE_RESULT(), RDO_GET_CLIENT_INFO(), RDO_GET_HOST_INFO(), RDO_INFO(), RDO_LIST_DBS(), RDO_NUM_FIELDS(), RDO_NUM_ROWS(), RDO_PING(), RDO_QUERY(), RDO_REAL_ESCAPE_STRING(), RDO_RESULT(), RDO_SELECT_DB(), RDO_STAT(), RDO_THREAD_ID(), RDO_UNBUFFERED_QUERY()


Description

The RDO_FETCH_FIELD() function is used to return an object containing information about a field from a result set. If the column number, <expN>, is omitted, the result of the previous RDO_FIELD_SEEK() is used.


Keywords Description
<object> Result set
<expN> Column number


Example

conn = rdo_connect("recital", "localhost", "?", "?","southwind")
if conn > -1
    res = rdo_query("select * from shippers", conn)
    for i = 0 to rdo_num_fields(res)-1
        arr1 = rdo_fetch_field(res,i)
        print_r(arr1)
    next
    rdo_close(conn)
endif


Products

Recital, Recital Server