我有下表:
LOG_SYNC_CALLS_HEADERS
ID
CALL_DATE
CALL_TYPE (foreign key to LOG_SYNC_CALL_TYPES)
ACTION_NAME
ACTION_RESULTS
LOG_SYNC_CALLS_IECS
ID
HEADER_ID (foreign key to LOG_SYNC_CALLS_HEADERS)
CONTENTS (clob)
我需要创建过程GET_IEC_BY_PARTS。输入参数将是ID,对于该ID,您必须在表LOG_SYNC_CALLS_IECS中找到对应的CLOB。将varchar中的CLOB分隔为4000个字符,然后在游标中将其返回。游标包含以下列:ID,HEADER_ID,PART_NUMBER,CONTENTS。 PART_NUMBER的范围是1到10。
有人可以告诉我如何执行此过程吗?
我的问题是:
如何将varchar中的CLOB分隔为4000个字符并在游标中将其返回?
如何为光标定义参数?
我有以下步骤:
INSERT_IEC_BY_PARTS。该过程具有参数:ID(NUMBER),HEADER_ID(NUMBER),CONTENTS_PART1,...,CONTENTS_PART10。 CONTENT_PART是VARCHAR类型。该过程返回result_code号,并在光标中插入ID(OUT参数)。
此过程应将这10个CONTENTS_PART合并为一个CLOB,然后使用INSERT_IEC过程将该CLOB插入数据库中。
procedure insert_iec_by_parts(p_header_id in number,
p_contents_part1 in varchar2,
p_contents_part2 in varchar2,
p_contents_part3 in varchar2,
p_contents_part4 in varchar2,
p_contents_part5 in varchar2,
p_contents_part6 in varchar2,
p_contents_part7 in varchar2,
p_contents_part8 in varchar2,
p_contents_part9 in varchar2,
p_contents_part10 in varchar2,
o_cur_results out sys_refcursor,
result_code out number) is
l_clob clob;
begin
l_clob:=p_contents_part1||p_contents_part2||p_contents_part3||p_contents_part4||p_contents_part5||
p_contents_part6||p_contents_part7||p_contents_part8||p_contents_part9||p_contents_part10;
insert_iec(p_header_id, l_clob, o_cur_results, result_code );
end;
INSERT_IEC:
procedure insert_iec(p_header_id in number,
p_contents in clob,
o_cur_results out sys_refcursor,
result_code out number) is
id_temp number;
l_id number;
procedure SetError(pErrCode number) is
-- A centralised sub proc could allow for a quick change to raise_application_error at any time.
begin
result_code := pErrCode;
end;
begin
select count(*) into l_id from log_sync_calls_headers
where log_sync_calls_headers.id =p_header_id;
case
when (p_header_id is null) or (l_id <= 0) then SetError(9804);
when p_contents is null then SetError(9805);
else
-- fetch sequence number
id_temp := iec_seq.nextval;
result_code:=0;
open o_cur_results for
select id_temp as id
from dual;
insert into log_sync_calls_iecs
(id, header_id, contents)
values
(id_temp, p_header_id, p_contents );
commit;
end case;
exception when others then
result_code :=9701;
rollback;
pkg_common.insert_log_record(p_source => 'insert_iec',
p_type => 'Er',
p_message => sqlerrm);
end;