oracle ʱ¼äÀàÐÍ C#
ÔÚsqlÓï¾äÖÐÉæ¼°µ½Ê±¼äÀàÐÍʱ ÈôÖ»ÏëÒªÈÕÆÚ to_date('2007-7-8','yyyy-mm-dd')
ÔÚC#ÖÐÓÐdatetimeÀàÐÍ£¬´úÂë˵Ã÷Ò»ÇÐ
DateTime dt = System.DateTime.Now;
string lsh;
lsh=string.Format("{0:yyyyMMddHHmmss}", dt);
DateTime dt = DateTime.Now;
Label1.Text = dt.ToString();//2005-11-5 13:21:25
Label2.Text = dt.ToFileTime().ToString();//127756416859912816
Label3.Text = dt.ToFileTimeUtc().ToString();//127756704859912816
Label4.Text = dt.ToLocalTime().ToString();//2005-11-5 21:21:25
Label5.Text = dt.ToLongDateString().ToString();//2005Äê11ÔÂ5ÈÕ
Label6.Text = dt.ToLongTimeString().ToString();//13:21:25
Label7.Text = dt.ToOADate().ToString();//38661.5565508218
Label8.Text = dt.ToShortDateString().ToString();//2005-11-5
Label9.Text = dt.ToShortTimeString().ToString();//13:21
Label10.Text = dt.ToUniversalTime().ToString();//2005-11-5 5:21:25
Label1.Text = dt.Year.ToString();//2005
Label2.Text = dt.Date.ToString();//2005-11-5 0:00:00
Label3.Text = dt.DayOfWeek.ToString();//Saturday
Label4.Text = dt.DayOfYear.ToString();//309
Label5.Text = dt.Hour.ToString();//13
Label6.Text = dt.Millisecond.ToString();//441
Label7.Text = dt.Minute.ToString();//30
Label8.Text = dt.Month.ToString();//11
Label9.Text = dt.Second.ToString();//28
Label10.Text = dt.Ticks.ToString();//632667942284412864
Label11.Text = dt.TimeOfDay.ToString();//13:30:28.4412864
Label1.Text = dt.ToString();//2005-11-5 13:47:04
Label2.Text = dt.AddYears(1).ToString();//2006-11-5 13:47:04
Label3.Text = dt.AddDays(1.1).ToString();//2005-11-6 16:11:04
Label4.Text = dt.AddHours(1.1).ToString();//2005-11-5 14:53:04
Label5.Text = dt.AddMilliseconds(1.1).ToString();//2005-11-5 13:47:04
Label6.Text = dt.AddMonths(1).ToString();//2005-12-5 13:47:04
Label7.Text = dt.AddSeconds(1.1).ToString();//2005-11-5 13:47:05
Label8.Text = dt.AddMinutes(1.1).ToString();//2005-11-5 13:48:10
Label9.Text = dt.AddTicks(1000).ToString();//2005-11-5 13:47:04
Label10.Text = dt.Compar
Ïà¹ØÎĵµ£º
ѧϰOracle DBAÒ²°ë¸ö¶àѧÆÚÁË£¬½ñÌìÃÍÈ»²Å·¢ÏÖ£¬ÔÀ´ÎÒµÄÊ黹ÊǺÜеģ¬ÉϿβÙ×÷ʱºòÒ²Ö»ÊÇÖªµÀ´ó¸ÅÔõô×ö£¬µ«ÊÇÒªÕæµÄÈ«²¿×Ô¼º×ö£¬¶ø²»È¥·Ê黹ÊÇÓÐÒ»¶¨µÄÄѶȵģ¬ËùÒÔÄØ£¬½ñÌ쿪ʼ½«DBA´ÓÍ·¸´Ï°Ò»±é£¬Í¬Ê±ÔÙ²Ù×÷Ò»±é¡£
µÚÒ»Õ£¬Ñ§µÄÊÇOracleµÄÌåϵ½á¹¹£ ......
oracleÊý¾Ý¿âʵÀýÆô¶¯Ê±£¬ÐèÒª·ÖÅä¹²ÏíÄڴ棬Æô¶¯ºǫ́½ø³Ì¡£
oracleÊý¾Ý¿âʹÓõÄÄÚ´æÖ÷񻃾¼°µ½£ºPGAºÍSGA¡£
Ò»¡¢ PGA
Program Global Area£¬¹ËÃû˼ÒåÊdzÌÐòÈ«¾ÖÇø£¬ÊÇ·þÎñÆ÷½ø³Ì£¨Server Process£©Ê¹ÓõÄÒ»¿é°üº¬Êý¾ÝºÍ¿ØÖÆÐÅÏ¢µÄÄÚ´æÇøÓò£¬PGAÊǷǹ²ÏíµÄÄڴ棬ÔÚ·þÎñÆ÷½ø³ÌÆô¶¯»ò´´½¨Ê±·ÖÅ䣬²¢ÎªServer ProcessÅÅËû·Ã ......
Ò». ÀûÓÃrowidÀ´µÃµ½Ïà¹ØÐÅÏ¢
SQL> conn sys/admin as sysdba
ÒÑÁ¬½Ó¡£
SQL> create table bl(id number);
±íÒÑ´´½¨¡£
SQL> insert into bl values(1);
ÒÑ´´½¨ 1 ÐС£
SQL> select owner,segment_name,file_id,RELATIVE_FNO,block_id from dba_extents wh
ere owner='SYS' and segment_name='B ......
ÒòΪÃ÷°Ú×ŵÄÔµ¹Ê£¬10.2Òý³öµÄTDEЧÄܶÔÁмÓÃÜÒÔºó£¬ÕÐÖÂÏà¸ÉĿ¼ɥʧÁ˶Բ»µÈʽµÄÅжÏÄÜÁ¦¡£
鍫룼
ENCRYPTIONDEMO@fmw//scripts> create table tde_table(id number encrypt no salt,na
me varchar¶þ(30))
¶þ ;
Table created.
Elapsed: 00:00:00.11
ENCRYPTIONDEMO@fmw//scripts> begin
¶þ for i in 1..2 ......