Difference between revisions of "RDO FIELD LEN()"

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==Syntax==
 
==Syntax==
RDO_FIELD_LEN(<expN>)
+
RDO_FIELD_LEN(<object>, <expN>)
 +
 
 +
MYSQL_FIELD_LEN(<object>, <expN>)
  
  
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==Example==
 
==Example==
 
<code lang="recital">
 
<code lang="recital">
conn = rdo_connect("recital", "localhost", "user", "pass","southwind")
+
conn = rdo_connect("recital", "localhost", "?", "?","southwind")
 
if conn > -1
 
if conn > -1
 
     res = rdo_query("select * from shippers", conn)
 
     res = rdo_query("select * from shippers", conn)
     for i = 0 to rdo_num_fields()
+
     for i = 0 to rdo_num_fields(res)-1
         echo rdo_field_type(res,i), " = type\n"
+
         echo "table = ", rdo_field_table(res,i), "\n"
         echo rdo_field_name(res,i), " = name\n"
+
        echo "type = ", rdo_field_type(res,i), "\n"
         echo rdo_field_len(res,i), " = len\n"
+
         echo "name = ", rdo_field_name(res,i), "\n"
         echo rdo_field_flags(res,i), " = flags\n"
+
         echo "len = ", rdo_field_len(res,i), "\n"
 +
         echo "flags = ", rdo_field_flags(res,i), "\n"
 
     next
 
     next
 
     rdo_close(conn)
 
     rdo_close(conn)
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[[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 15:40, 28 July 2010

Purpose

Return the length of a field in a result set


Syntax

RDO_FIELD_LEN(<object>, <expN>)

MYSQL_FIELD_LEN(<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_FIELD(), RDO_FETCH_LENGTHS(), RDO_FETCH_OBJECT(), RDO_FETCH_ROW(), RDO_FIELD_FLAGS(), 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_FIELD_LEN() function is used to return the length of a field in a result set.


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
        echo "table = ", rdo_field_table(res,i), "\n"
        echo "type = ", rdo_field_type(res,i), "\n"
        echo "name = ", rdo_field_name(res,i), "\n"
        echo "len = ", rdo_field_len(res,i), "\n"
        echo "flags = ", rdo_field_flags(res,i), "\n"
    next
    rdo_close(conn)
endif


Products

Recital, Recital Server