ArcSDE C-API 开发：添加新要素

<P>基本步骤：</P>
<OL>
<LI class=kadov-p>
<P >Connect to a database.</P>
<LI class=kadov-p>
<P >Initiate the insert statement on the stream.</P>
<LI class=kadov-p>
<P >For each row to be inserted<BR>{<BR>    Set the data values.<BR>    Insert row by executing statement.<BR>}</P>
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<P >Disconnect from the database.</P></LI></OL>
<P>代码：</P>
<P>* Define the columns to be filled in on insert */</P>
<P >num_cols = 4;</P>
<P >attrs = (CHAR **) malloc (num_cols * sizeof(CHAR *));</P>
<P >attrs[0] = "city_name";</P>
<P >attrs[1] = "area";</P>
<P >attrs[2] = "population";</P>
<P >attrs[3] = "boundary";</P>
<P > </P>
<P >/* Tell the stream that you are inserting new records into the table */</P>
<P >rc = SE_stream_insert_table (Stream, "cities", num_cols, attrs);</P>
<P >/* See Error handling section for check_error function code. */</P>
<P >check_error(NULL, Stream, rc, "SE_stream_insert_table");</P>
<P > </P>
<P >/* For each record to be inserted into the table */</P>
<P >while (more data exists for insert;ldots;)</P>
<P >{</P>
<P >    rc = SE_stream_set_string (Stream, 1, city_name);</P>
<P >    check_error(NULL, Stream, rc, "SE_stream_set_string");</P>
<P > </P>
<P >    rc = SE_stream_set_double (Stream, 2, area);</P>
<P >    check_error(NULL, Stream, rc, "SE_stream_set_double");</P>
<P > </P>
<P >    rc = SE_stream_set_integer (Stream, 3, population);</P>
<P >    check_error(NULL, Stream, rc, "SE_stream_set_integer");</P>
<P > </P>
<P >    rc = SE_stream_set_shape (Stream, 4, shape);</P>
<P >    check_error(NULL, Stream, rc, "SE_stream_set_shape");</P>
<P > </P>
<P >    rc = SE_stream_execute (Stream);</P>
<P >    check_error(NULL, Stream, rc, "SE_stream_execute");</P>
<P >}</P>