weblogicÏÂÔÚOracleÖд洢clobÀàÐÍÒ»Àý
String sql = "select t.FILE_INFO from T_FILE_DB_DETAIL t where t.id= "
+ fileDBUpDownDetail.getId() + " for update";
rs = stmt.executeQuery(sql);
if (rs.next()) {
// ÔÚweblogicϲ¿Êðʱ£¬ÐèÒª¸ü¸ÄΪBea WebLogic BLOB¸ñʽ
// weblogic.jdbc.vendor.oracle.OracleThinBlob blob = (weblogic.jdbc.vendor.oracle.OracleThinBlob) rs
// .getBlob(1);
BLOB blob = (BLOB) rs.getBlob(1);
if (blob != null) {
out = blob.getBinaryOutputStream();
byte[] buf = new byte[8192];// 8K »º´æ
int len;
while ((len = fileInputStream.read(buf)) > 0) {
if (out != null) {
out.write(buf, 0, len);
out.flush();
}
}
}
}
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extent--×îС¿Õ¼ä·ÖÅ䵥λ --tablespace management
block --×îСi/oµ¥Î» --segment management
create tablespace james
datafile '/export/home/oracle/oradata/james.dbf'
size 100M ¡¡¡¡¡¡¡¡¡¡¡¡--³õʼµÄÎļþ´óС¡¡
autoextend On¡¡¡¡¡¡¡¡ --×Ô¶¯Ôö³¤
next 10M¡ ......
ORACLE ÁÙʱ±í¿Õ¼äʹÓÃÂʹý¸ßµÄÔÒò¼°½â¾ö·½°¸(2009-11-14 19:59:02)
±êÇ©£ºoracle ÁÙʱ±í¿Õ¼ä ʹÓÃÂÊ100 ½â¾ö·½°¸ it
·ÖÀࣺ¼¼Êõ²©ÂÛ
ÔÚÊý¾Ý¿âµÄÈÕ³£Ñ§Ï°ÖУ¬·¢ÏÖ¹«Ë¾Éú²úÊý¾Ý¿âµÄĬÈÏÁÙʱ±í¿Õ¼ätempʹÓÃÇé¿ö´ïµ½ÁË30G£¬Ê¹ÓÃÂÊ´ïµ½ÁË100%£» ´ýµ÷ÕûΪ32Gºó£¬Ê¹ÓÃÂÊ»¹ÊÇΪ100%£¬µ¼Ö´ÅÅ̿ռäʹÓýôÕÅ¡£¸ù¾ÝÁÙʱ±í¿Õ¼äµÄÖ÷ ......
1£ºÒÔÒ»¸öDBAÉí·ÖµÄÓû§µÇ½£¬´ò¿ªÒ»¸öÃüÁî´°¿Ú¡£Ö´ÐÐÃüÁî
SELECT /*+ rule */ s.username,
decode(l.type,'TM','TABLE LOCK',
'TX','ROW LOCK',
NULL) LOCK_LEVEL,
o.owner,o.object_name,o.object_type,
s.sid,s.serial#,s.terminal,s.machine,s.program,s.osuser
from v$session s,v$lock l,dba_objects o
WHERE ......
CREATE TABLE salaryByMonth
(
employeeNo varchar2(20),
yearMonth varchar2(6),
salary number
) ;
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200805', 500);
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200802', 150);
in ......