2、删除开始作答时间最早的3条记录[LIMIT] DELETEFROMexam_recordWHEREsubmit_timeISNULLORTIMESTAMPDIFF(minute,start_time,submit_time)<5ORDERBYstart_time LIMIT3 3、删除后重置自增主键 清空数据并重建表结构 TRUNCATEexam_record
2、删除开始作答时间最早的3条记录[LIMIT] DELETE FROM exam_record WHERE submit_time IS NULL OR TIMESTAMPDIFF(minute,start_time,submit_time)<5 ORDER BY start_time LIMIT 3 1. 2. 3. 3、删除后重置自增主键 清空数据并重建表结构 TRUNCATE exam_record 1. 作者:哥们要飞...
TRUNCATE option in SQL is used to remove all the elements from the table and it works rapidly than the delete statement. It is mostly used in transaction log sections. TRUNCATE option works ideal for higher dimensional data management. TRUNCATETABLECourses; ADVERTISEMENT MICROSOFT POWER BI - Specia...
git-diff - Show changes between commits, commit and working tree, etc Synopsis git diff [options] [<commit>] [--] [<path>...] git diff [options] --cached [<commit>] [--] [<path>...] git diff [options] <commit> <commit> [--] [<path>...] git diff [options] [--no-...
-D, --irreversible-delete Omit the preimage for deletes, i.e. print only the header but not the diff between the preimage and /dev/null. The resulting patch is not meant to be applied with patch nor git apply; this is solely for people who want to just concentrate on reviewing the ...
MySQL PERIOD_DIFF() function is similar to the PERIOD_ADD() function. It is used to find the difference between two period values. In MySQL, a period is defined as a combination of year and month; and it will be represented in the format, YYMM or YYYYMM....
216610: "LEFT JOIN" statement in sp procedure presented as "WHERE" statement in ApexSQL Diff "Difference view table" when the "White space" option is enabled 221570: App crashes when parsing dependency 221569: Inconsistency with "Internal difference viewer" between ApexSQL Diff v2021.01 and v2018....
216610: "LEFT JOIN" statement in sp procedure presented as "WHERE" statement in ApexSQL Diff "Difference view table" when the "White space" option is enabled 221570: App crashes when parsing dependency 221569: Inconsistency with "Internal difference viewer" between ApexSQL Diff v2021.01 and v2018....
DTS_E_RAWCANTAPPENDTRUNCATE Field DTS_E_RAWCANTREAD Field DTS_E_RAWCANTWRITE Field DTS_E_RAWDESTBLOBDATATYPE Field DTS_E_RAWDESTMAPPEDINPUTCOLUMN Field DTS_E_RAWDESTNOINPUTCOLUMNS Field DTS_E_RAWDESTWRONGEXTERNALMETADATAUSAGE Field DTS_E_RAWEXISTSCREATEONCE Field DTS_E_RAWFILECANTBUFFER Field...
In this repository All GitHub ↵ Jump to ↵ In this organization All GitHub ↵ Jump to ↵ In this repository All GitHub ↵ Jump to ↵ Sign in Sign up {{ message }} ClickHouse / ClickHouse Public Notifications Fork 4.4k Star 22.4k Code...