n默认为Apex。抱歉,4年后我注意到我错误地将包名输入为“Apex_实用程序”-它是“Apex_util”(现已更正)。在Oracle 11g上,我无法string_to_table,因为“Java服务”已禁用。但是,SA用户可以启用它们。See的可能副
n默认为Apex。抱歉,4年后我注意到我错误地将包名输入为“Apex_实用程序”-它是“Apex_util”(现已更正)。在Oracle 11g上,我无法string_to_table,因为“Java服务”已禁用。但是,SA用户可以启用它们。See的可能副,string,oracle,plsql,split,tokenize,String,Oracle,Plsql,Split,Tokenize,n默认为Apex。抱歉,4年后我注意到我错误地将包名输入为“Apex_实用程序”-它是“Apex_util”(现已更正)。在Oracle 11g上,我无法string_to_table,因为“Java服务”已禁用。但是,SA用户可以启用它们。See的可能副本以及有关相对性能的讨论是。最好知道以下哪一项最快,Java函数可能是速度最快的;取决于APEX是否是C实现。您提到的页面确实非常好,但最好将代码复制到这里,以便更容易、更快速地查看它。在死链接的情况下也会更好…我喜欢这样,因为批量收集到,而不
n默认为Apex。抱歉,4年后我注意到我错误地将包名输入为“Apex_实用程序”-它是“Apex_util”(现已更正)。在Oracle 11g上,我无法
string_to_table
,因为“Java服务”已禁用。但是,SA用户可以启用它们。See的可能副本以及有关相对性能的讨论是。最好知道以下哪一项最快,Java函数可能是速度最快的;取决于APEX是否是C实现。您提到的页面确实非常好,但最好将代码复制到这里,以便更容易、更快速地查看它。在死链接的情况下也会更好…我喜欢这样,因为批量收集到
,而不是显式循环通过regexp结果。既然Oracle没有为我们提供split()
实用程序,我们至少要使用它提供的工具。。。
/* from :http://www.builderau.com.au/architect/database/soa/Create-functions-to-join-and-split-strings-in-Oracle/0,339024547,339129882,00.htm
select split('foo,bar,zoo') from dual;
select * from table(split('foo,bar,zoo'));
pipelined function is SQL only (no PL/SQL !)
*/
create or replace type split_tbl as table of varchar2(32767);
/
show errors
create or replace function split
(
p_list varchar2,
p_del varchar2 := ','
) return split_tbl pipelined
is
l_idx pls_integer;
l_list varchar2(32767) := p_list;
l_value varchar2(32767);
begin
loop
l_idx := instr(l_list,p_del);
if l_idx > 0 then
pipe row(substr(l_list,1,l_idx-1));
l_list := substr(l_list,l_idx+length(p_del));
else
pipe row(l_list);
exit;
end if;
end loop;
return;
end split;
/
show errors;
/* An own implementation. */
create or replace function split2(
list in varchar2,
delimiter in varchar2 default ','
) return split_tbl as
splitted split_tbl := split_tbl();
i pls_integer := 0;
list_ varchar2(32767) := list;
begin
loop
i := instr(list_, delimiter);
if i > 0 then
splitted.extend(1);
splitted(splitted.last) := substr(list_, 1, i - 1);
list_ := substr(list_, i + length(delimiter));
else
splitted.extend(1);
splitted(splitted.last) := list_;
return splitted;
end if;
end loop;
end;
/
show errors
declare
got split_tbl;
procedure print(tbl in split_tbl) as
begin
for i in tbl.first .. tbl.last loop
dbms_output.put_line(i || ' = ' || tbl(i));
end loop;
end;
begin
got := split2('foo,bar,zoo');
print(got);
print(split2('1 2 3 4 5', ' '));
end;
/
DECLARE
I INTEGER;
TYPE T_ARRAY_OF_VARCHAR IS TABLE OF VARCHAR2(2000) INDEX BY BINARY_INTEGER;
MY_ARRAY T_ARRAY_OF_VARCHAR;
MY_STRING VARCHAR2(2000) := '123,456,abc,def';
BEGIN
FOR CURRENT_ROW IN (
with test as
(select MY_STRING from dual)
select regexp_substr(MY_STRING, '[^,]+', 1, rownum) SPLIT
from test
connect by level <= length (regexp_replace(MY_STRING, '[^,]+')) + 1)
LOOP
DBMS_OUTPUT.PUT_LINE(CURRENT_ROW.SPLIT);
MY_ARRAY(MY_ARRAY.COUNT) := CURRENT_ROW.SPLIT;
END LOOP;
END;
/
substr(field,instr(field,'#@$',1,1)+3,7)
substr(field,instr(field,'#@$',1,1)+3,instr(field,'#@$',1,2) - (instr(field,'#@$',1,1)+3))
function numinstr(p_source in varchar2,p_token in varchar2)
return pls_integer
is
v_occurrence pls_integer := 1;
v_start pls_integer := 1;
v_loc pls_integer;
begin
v_loc:=instr(p_source, p_token, 1, 1);
while v_loc > 0 loop
v_occurrence := v_occurrence+1;
v_start:=v_loc+1;
v_loc:=instr(p_source, p_token, v_start, 1);
end loop;
return v_occurrence-1;
end numinstr;
--
--
--
--
function get_split_field(p_source in varchar2,p_delim in varchar2,nth pls_integer)
return varchar2
is
v_num_delims pls_integer;
first_pos pls_integer;
final_pos pls_integer;
len_delim pls_integer := length(p_delim);
ret_len pls_integer;
begin
v_num_delims := numinstr(p_source,p_delim);
if nth < 1 or nth > v_num_delims+1 then
return null;
else
if nth = 1 then
first_pos := 1;
else
first_pos := instr(p_source, p_delim, 1, nth-1) + len_delim;
end if;
if nth > v_num_delims then
final_pos := length(p_source);
else
final_pos := instr(p_source, p_delim, 1, nth) - 1;
end if;
ret_len := (final_pos - first_pos) + 1;
return substr(p_source, first_pos, ret_len);
end if;
end get_split_field;
StatusString := REPLACE('Active,Completed', ',', ''',''');
Select REPLACE('Active,Completed', ',', ''',''') from dual;
select substr('alfa#bravo#charlie#delta', 1,
instr('alfa#bravo#charlie#delta', '#', 1, 1)-1) from dual;
select substr('alfa#bravo#charlie#delta', instr('alfa#bravo#charlie#delta', '#', 1, 1)+1,
instr('alfa#bravo#charlie#delta', '#', 1, 2) - instr('alfa#bravo#charlie#delta', '#', 1, 1) -1) from dual;
select substr('alfa#bravo#charlie#delta', instr('alfa#bravo#charlie#delta', '#', 1, 2)+1,
instr('alfa#bravo#charlie#delta', '#', 1, 3) - instr('alfa#bravo#charlie#delta', '#', 1, 2) -1) from dual;
select substr('alfa#bravo#charlie#delta', instr('alfa#bravo#charlie#delta', '#', 1, 3)+1) from dual;
create or replace type splitTable_Type is table of varchar2(100);
declare
l_split_table splitTable_Type;
begin
select
regexp_substr('SMITH,ALLEN,WARD,JONES','[^,]+', 1, level)
bulk collect into
l_split_table
from dual
connect by
regexp_substr('SMITH,ALLEN,WARD,JONES', '[^,]+', 1, level) is not null;
end;