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¡ ......
showºÍsetÃüÁîÊÇÁ½ÌõÓÃÓÚά»¤SQL*Plusϵͳ±äÁ¿µÄÃüÁî
SQL> show all --²é¿´ËùÓÐ68¸öϵͳ±äÁ¿Öµ
SQL> show user --ÏÔʾµ±Ç°Á¬½ÓÓû§
SQL> show error¡¡¡¡ --ÏÔʾ´íÎó
SQL> set heading off --½ûÖ¹Êä³öÁбêÌ⣬ĬÈÏֵΪON
SQL> set feedback off --½ûÖ¹ÏÔʾ×îºóÒ»ÐеļÆÊý·´À¡ÐÅÏ¢£¬Ä¬ÈÏֵΪ"¶Ô6¸ö» ......
oracle Êý¾Ý¿âÁ¬½Ó¾ÍÏñÄãÔÚ³ÌÐòÖн¨Á¢Ò»¸öµ½Êý¾Ý¿âµÄÁ¬½ÓÒ»Ñù¡£
Èç¹ûÊý¾Ý¿â²»ÔÚ±¾µØÖ÷»ú,±ØÐëÔÚ$ORACLE_HOME/network/admin/tnsnames.oraÖÐÅäÖÃÏàÓ¦µÄtns£¬È»ºó³ÌÐò²ÅÄÜͨ¹ýÅäÖúõÄtns·ÃÎÊÊý¾Ý¿â£¬µ«ÊÇjavaͨ¹ýthin·½Ê½·ÃÎÊoracleÀýÍ⣬¿ÉÒÔ²ÉÓÃÔÚ±¾µØÅäÖúõÄtns±ðÃû£¬Ò²¿ÉÒÔ²ÉÓÃtnsÈ«½âÎöÃû£¬²ÉÓñðÃûµÈºÅºóµÄÈ« ......
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select sysdate,add_months(sysdate,12) from dual; --¼Ó1Äê
select sysdate,add_months(sysdate,1) from dual; --¼Ó1ÔÂ
select sysdate,to_char(sysdate+7,'yyyy-mm-dd HH24:MI:SS') from dual; ......