[n] parameter n optional, n for message number
3.UIDL command format: uidl [n] Ditto
4.RETR command format: retr n parameter n not province, N for message number
5.dele command format: Dele N ditto
6.top command format: Top N m parameter n,m not province, N for message number, m for line number
7.noop command format: noop without parameters
8.quit command format: quit without parameters
Detailed features of each command are shown in the following instructions:
1, stat command without parameters
requested service.
1451 system resources are not sufficient to complete the requested service.
1452 system resources are not sufficient to complete the requested service.
1453 there is not enough quota to complete the requested service.
1454 there is not enough quota to complete the requested service.
The 1455 paging file is too small to complete this operation.
1456 cannot find the menu item.
1457 keyboard layout handle is invalid.
1458 is not allowed to use hook type.
1459 This operation requ
-0203-05-0903-05-1603-05-2303-05-30If you change where To_char (T.D, ' mm ') = To_char (sysdate, ' mm ') to sysdate-90, you are looking for every Friday date in the first three months of the current month.9.oracle Medium Time operationThe contents are as follows:1, Oracle supports the operation of the date2, the date is calculated in days as a unit3, when it is necessary to calculate the value of smaller units, such as seconds, time-based conversion c
. First day of last monthSql> Select To_char (add_months (Last_day (sysdate) +1,-2), ' Yyyy-mm-dd ') FirstDay from dual;FirstDay----------2005-05-014. According to weekly statisticsSql> Select To_char (sysdate, ' WW ') from dual Group by To_char (Sysdate, ' ww ');To--255. According to monthly statisticsSql> Select To_char (sysdate, ' mm ') from the dual group by To_char (sysdate, ' mm ');To--066. Statistics per quarterSql> Select To_char (sysdate, ' Q ') from the dual group by To_char (sysdate,
'--------03-05-0203-05-0903-05-1603-05-2303-05-30If you change where To_char (T.D, ' mm ') = To_char (sysdate, ' mm ') to sysdate-90, you are looking for every Friday date in the first three months of the current month.9.oracle Medium Time operationThe contents are as follows:1, Oracle supports the operation of the date2, the date is calculated in days as a unit3, when it is necessary to calculate the value of smaller units, such as seconds, time-bas
deadline: A . 46. Personality test: (written selection)1) Time: The specific message and text message notification shall prevail;2) Assessment objectives: To understand the characteristics of students, thinking patterns and career development goals.7. Teaching Arrangement:1) Time: 9:30-12:00;13:30-17:002) Content arrangement:The first phase: the foundation of Entry (2 days), the experiment, "hand-built library"--database certification expert lecturesPhase II: Foundation Enhancement (2 days), e
: 2014.12.46. Personality test: (written selection)1) Time: The specific message and text message notification shall prevail;2) Assessment objectives: To understand the characteristics of students, thinking patterns and career development goals.7. Teaching Arrangement:1) Time: 9:30-12:00;13:30-17:002) Content arrangement:The first phase: the foundation of Entry (2 days), the experiment, "hand-built library"--database certification expert lecturesPhase II: Foundation Enhancement (2 days), experim
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