十万条数据,不算多,直接spool就行了.根据数据库配置不一样一般是每秒2000条左右.如果利用oracle的一个接口,写个程序如:C++的话,可以达到2万条每秒。 我只了解第一种方法: set time off; set echo off; set head off; set wrap off; set linesize 10000; set pagesize 0; set trims on; set feedback off; spool e:\test.txt; select * from table; spool off;
我只了解第一种方法:
set time off;
set echo off;
set head off;
set wrap off;
set linesize 10000;
set pagesize 0;
set trims on;
set feedback off;
spool e:\test.txt;
select * from table;
spool off;
不过好像excel最多是64000多行记录
p_separator in varchar2
default ',',
p_dir in varchar2 ,
p_filename in varchar2 )
return number
AUTHID CURRENT_USER
is
l_output utl_file.file_type;
l_theCursor integer default dbms_sql.open_cursor;
l_columnValue varchar2(2000);
l_status integer;
l_colCnt number default 0;
l_separator varchar2(10) default '';
l_cnt number default 0;
begin
l_output := utl_file.fopen( p_dir, p_filename, 'w' ); dbms_sql.parse( l_theCursor, p_query, dbms_sql.native ); for i in 1 .. 255 loop
begin
dbms_sql.define_column( l_theCursor, i,
l_columnValue, 2000 );
l_colCnt := i;
exception
when others then
if ( sqlcode = -1007 ) then exit;
else
raise;
end if;
end;
end loop; dbms_sql.define_column( l_theCursor, 1, l_columnValue,
2000 ); l_status := dbms_sql.execute(l_theCursor); loop
exit when ( dbms_sql.fetch_rows(l_theCursor) <= 0 );
l_separator := '';
for i in 1 .. l_colCnt loop
dbms_sql.column_value( l_theCursor, i,
l_columnValue );
utl_file.put( l_output, l_separator ||
l_columnValue );
l_separator := p_separator;
end loop;
utl_file.new_line( l_output );
l_cnt := l_cnt+1;
end loop;
dbms_sql.close_cursor(l_theCursor); utl_file.fclose( l_output );
return l_cnt;
end dump_csv;求大大解释 这个函数的使用方法 4各参数分别 的含义
begin
dbms_output.put_line(APPS.DUMP_CSV('select * '));
end;
还有使用上面的方法能调用吗 谢谢 完了给分
select语句、分隔符(默认是逗号),路径,文件名