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the specified string in a long stringSelect InStr (' go,go,quickly! ', ' Go ') from DUAL;//1Select InStr (' go,go,quickly! ', ' Go ', 2) from DUAL;//4Select InStr (' go,go,quickly! ', ' Go ', -1) from DUAL;//4Select InStr (' go,go,quickly! ', ' Go ', -1,2) from DUAL;//1 Note: The database string subscript starts at 1 counting!!! SUBSTR ()Select substr (' Hello world! ', 3) from Dual;//llo world!Select substr (' Hello world! ', 3,4) from Dual;//lloStart cutting from subscript 3rd and keep 4 char

example, toTable 1: FIFA player ID Player name Nationality 2014 World Cup goals ...... 10982 Ronaldinho Portugal 6 ...... 23781 Villa Spain 5 ...... 12312 Muller Germany 4 ...... ...... Million bar Table 2 FIFA player ID 10982 23781 12312 ...... Region

: FIFA player ID Player name Nationality 2014 World Cup goals ...... 10982 Ronaldinho Portugal 6 ...... 23781 Villa Spain 5 ...... 12312 Muller Germany 4 ...... ...... Million bar Table 2 FIFA player ID 10982 23781 12312 ...... Region

[[emailprotected] ~]# 1.3, write an automatic synchronization time of the script, join the scheduled task, synchronize once a dayvim /etc/cron.daily/ntpdate #! /bin/bash /usr/sbin/ntpdate -s us.pool.ntp.org /usr/sbin/hwclock --systohc 授予权限 chmod +x /etc/cron.daily/ntpdate 加入crontab任务，每20分钟同步一次 [[emailprotected] ~]# crontab -l */20 * * * * sh /etc/cron.daily/ntpdate [[emailprotected] ~]# 2,linux time settings and synchronization 2.1 about time and time zoneIf someone asks you what time i

, restart the offensive process, go! Go! Go!Group C: lckn: Colombia: Strong South America, uniting on American soilThe LCKN process, used for RAC databases, can have up to 10 processes for blocking between instances.Think of this South American powerhouse, with the strength to suppress the strong from Europe, Asia, Africa, as the example of the blockade, this is the LCKN process.Group D: RECO: Costa Rica: three-line ring fastening, not accidental, is

A few days ago, I met a customer who wants to build a website. The customers of this website come from all over the world, both in China and abroad. Therefore, the customer demanded that the website not only be favored by domestic customers, but also be pleasant for foreign customers. That is to say, this website must be liked by users all over the world. This makes the author feel embarrassed. Because users in different countries have different habits and have different requirements on the over

One of Beijing's 80-plus stories about the poor travel of xiaomingniu in Europe, sleeping at the airport, cooking on your own, and traveling to Portugal and Spain for over 20 days. Only then can we find that poor games are happy. In other words, traveling is to get lost and to meet beautiful people. The Prose Written in beidao in The Book of failure is not expected to be high. Due to political reasons One of Beijing's 80-plus stories about the poor t

, using week-based%w Decimal Day of the week (value from 0 to 6, Sunday is 0)%W Week of the year, Monday as the first day (value from 0 to 53)Date string for%x standardTime string for%x standard%y decimal Year without century (values from 0 to 99)%Y 10 year with century part%z,%z the time zone name and returns a null character if the time zone name cannot be obtained.Percent hundred percent semicolonExample: >>>fromdatetimeimporttime,tzinfo>>>classGMT1(tzinfo):...defutcoffset(self

, whichever comes first. Use tune2fs-c or-I to override. 2.2 create a reiserfs File System: Togry @ xiaowp :~ /Disks $ sudo mkfs. reiserfs d-reiserfs Mkfs. reiserfs 3.6.19 (2003 www.namesys.com) A pair of credits: Lycos Europe (www.lycos-europe.com) had a support contract with us that Consistently came in just when we wocould otherwise have missed payroll, and that They kept doubling every year. Much thanks to them. Jeremy Fitzhardinge wrote the tea

Win32API Unicode encoding wide Byte The computer is invented by the Americans, so the character set is based on English first. In the 30 's, to satisfy its own encoding method: ASC encoding method, 7 bits (bit) for a character, can represent the word characters 128. Because the memory is expensive before. 128 characters are enough for Americans. With the development of computers to Europe, it is not enough to find ASC. Develop to ASCII

Now, the Red Sea in the smartphone market, and in China this continent has even crossed the "Red Sea fight Stage", because the competition is too encouraging, the marketing means serious homogeneity, we are too lazy to do, quite a bit "down-hearted" taste, at the same time, Apple for the smart phone market control more and more perverted, quite a lot of data show , IPhone already occupy the entire market. 90% above the profit. Samsung will take more than half of the remaining profit of less th

time difference between Greenwich and */Int tz_minuteswest;/* State of daylight saving time */Int tz_dsttime;};The above two structures are defined in/usr/include/sys/time. h. The status represented by tz_dsttime is as follows:Dst_none/* not used */Dst_usa/* United States */Dst_aust/* Australia */Dst_wet/* Western Europe */Dst_met/* Central Europe */Dst_eet/* Eastern E