{"id":164,"date":"2018-10-11T15:56:04","date_gmt":"2018-10-11T07:56:04","guid":{"rendered":"https:\/\/wp.dj47.top\/?p=164"},"modified":"2021-10-20T16:19:03","modified_gmt":"2021-10-20T08:19:03","slug":"mysql%e6%97%a5%e6%9c%9f%e6%97%b6%e9%97%b4%e5%87%bd%e6%95%b0%e5%a4%a7%e5%85%a8","status":"publish","type":"post","link":"https:\/\/www.djlog.cn\/?p=164","title":{"rendered":"MySQL\u65e5\u671f\u65f6\u95f4\u51fd\u6570\u5927\u5168"},"content":{"rendered":"

DAYOFWEEK(date)\u00a0<\/span>
\u3000\u8fd4\u56de\u65e5\u671fdate\u662f\u661f\u671f\u51e0(1=\u661f\u671f\u5929,2=\u661f\u671f\u4e00,\u2026\u20267=\u661f\u671f\u516d,ODBC\u6807\u51c6)<\/span>
mysql> select DAYOFWEEK(‘1998-02-03’);\u00a0<\/span>
\u3000\u3000-> 3\u00a0<\/span>
WEEKDAY(date)\u00a0<\/span>
\u3000\u8fd4\u56de\u65e5\u671fdate\u662f\u661f\u671f\u51e0(0=\u661f\u671f\u4e00,1=\u661f\u671f\u4e8c,\u2026\u20266= \u661f\u671f\u5929)\u3002\u00a0<\/span>
mysql> select WEEKDAY(‘1997-10-04 22:23:00’);\u00a0<\/span>
\u3000\u3000-> 5\u00a0<\/span>
mysql> select WEEKDAY(‘1997-11-05’);\u00a0<\/span>
\u3000\u3000-> 2\u00a0<\/span>
DAYOFMONTH(date)\u00a0<\/span>
\u3000\u8fd4\u56dedate\u662f\u4e00\u6708\u4e2d\u7684\u7b2c\u51e0\u65e5(\u57281\u523031\u8303\u56f4\u5185)\u00a0<\/span>
mysql> select DAYOFMONTH(‘1998-02-03’);\u00a0<\/span>
\u3000\u3000-> 3\u00a0<\/span>
DAYOFYEAR(date)\u00a0<\/span>
\u3000\u8fd4\u56dedate\u662f\u4e00\u5e74\u4e2d\u7684\u7b2c\u51e0\u65e5(\u57281\u5230366\u8303\u56f4\u5185)\u00a0<\/span>
mysql> select DAYOFYEAR(‘1998-02-03’);\u00a0<\/span>
\u3000\u3000-> 34\u00a0<\/span>
MONTH(date)\u00a0<\/span>
\u3000\u8fd4\u56dedate\u4e2d\u7684\u6708\u4efd\u6570\u503c\u00a0<\/span>
mysql> select MONTH(‘1998-02-03’);\u00a0<\/span>
\u3000\u3000-> 2\u00a0<\/span>
DAYNAME(date)\u00a0<\/span>
\u3000\u8fd4\u56dedate\u662f\u661f\u671f\u51e0(\u6309\u82f1\u6587\u540d\u8fd4\u56de)<\/span>
mysql> select DAYNAME(“1998-02-05”);\u00a0<\/span>
\u3000\u3000-> ‘Thursday’\u00a0<\/span>
MONTHNAME(date)\u00a0<\/span>
\u3000\u8fd4\u56dedate\u662f\u51e0\u6708(\u6309\u82f1\u6587\u540d\u8fd4\u56de)<\/span>
mysql> select MONTHNAME(“1998-02-05”);\u00a0<\/span>
\u3000\u3000-> ‘February’\u00a0<\/span>
QUARTER(date)\u00a0<\/span>
\u3000\u8fd4\u56dedate\u662f\u4e00\u5e74\u7684\u7b2c\u51e0\u4e2a\u5b63\u5ea6\u00a0<\/span>
mysql> select QUARTER(’98-04-01′);\u00a0<\/span>
\u3000\u3000-> 2\u00a0<\/span>
WEEK(date,first)<\/span>
\u3000\u8fd4\u56dedate\u662f\u4e00\u5e74\u7684\u7b2c\u51e0\u5468(first\u9ed8\u8ba4\u503c0,first\u53d6\u503c1\u8868\u793a\u5468\u4e00\u662f\u5468\u7684\u5f00\u59cb,0\u4ece\u5468\u65e5\u5f00\u59cb)<\/span>
mysql> select WEEK(‘1998-02-20’);\u00a0<\/span>
\u3000\u3000-> 7\u00a0<\/span>
mysql> select WEEK(‘1998-02-20’,0);\u00a0<\/span>
\u3000\u3000-> 7\u00a0<\/span>
mysql> select WEEK(‘1998-02-20’,1);\u00a0<\/span>
\u3000\u3000-> 8\u00a0<\/span>
YEAR(date)\u00a0<\/span>
\u3000\u8fd4\u56dedate\u7684\u5e74\u4efd(\u8303\u56f4\u57281000\u52309999)\u00a0<\/span>
mysql> select YEAR(’98-02-03′);\u00a0<\/span>
\u3000\u3000-> 1998\u00a0<\/span>
HOUR(time)\u00a0<\/span>
\u3000\u8fd4\u56detime\u7684\u5c0f\u65f6\u6570(\u8303\u56f4\u662f0\u523023)<\/span>
mysql> select HOUR(’10:05:03′);\u00a0<\/span>
\u3000\u3000-> 10\u00a0<\/span>
MINUTE(time)\u00a0<\/span>
\u3000\u8fd4\u56detime\u7684\u5206\u949f\u6570(\u8303\u56f4\u662f0\u523059)\u00a0<\/span>
mysql> select MINUTE(’98-02-03 10:05:03′);\u00a0<\/span>
\u3000\u3000-> 5\u00a0<\/span>
SECOND(time)\u00a0<\/span>
\u3000\u8fd4\u56detime\u7684\u79d2\u6570(\u8303\u56f4\u662f0\u523059)<\/span>
mysql> select SECOND(’10:05:03′);\u00a0<\/span>
\u3000\u3000-> 3\u00a0<\/span>
PERIOD_ADD(P,N)\u00a0<\/span>
\u3000\u589e\u52a0N\u4e2a\u6708\u5230\u65f6\u671fP\u5e76\u8fd4\u56de(P\u7684\u683c\u5f0fYYMM\u6216YYYYMM)\u00a0<\/span>
mysql> select PERIOD_ADD(9801,2);\u00a0<\/span>
\u3000\u3000-> 199803\u00a0<\/span>
PERIOD_DIFF(P1,P2)\u00a0<\/span>
\u3000\u8fd4\u56de\u5728\u65f6\u671fP1\u548cP2\u4e4b\u95f4\u6708\u6570(P1\u548cP2\u7684\u683c\u5f0fYYMM\u6216YYYYMM)<\/span>
mysql> select PERIOD_DIFF(9802,199703);\u00a0<\/span>
\u3000\u3000-> 11\u00a0<\/span>
DATE_ADD(date,INTERVAL expr type)<\/span>
DATE_SUB(date,INTERVAL expr type)\u00a0<\/span>
ADDDATE(date,INTERVAL expr type)\u00a0<\/span>
SUBDATE(date,INTERVAL expr type)<\/span>
\u3000\u5bf9\u65e5\u671f\u65f6\u95f4\u8fdb\u884c\u52a0\u51cf\u6cd5\u8fd0\u7b97<\/span>
\u3000(ADDDATE()\u548cSUBDATE()\u662fDATE_ADD()\u548cDATE_SUB()\u7684\u540c\u4e49\u8bcd,\u4e5f\u53ef\u4ee5\u7528\u8fd0\u7b97\u7b26 \u548c-\u800c\u4e0d\u662f\u51fd\u6570<\/span>
\u3000date\u662f\u4e00\u4e2aDATETIME\u6216DATE\u503c,expr\u5bf9date\u8fdb\u884c\u52a0\u51cf\u6cd5\u7684\u4e00\u4e2a\u8868\u8fbe\u5f0f\u5b57\u7b26\u4e32type\u6307\u660e\u8868\u8fbe\u5f0fexpr\u5e94\u8be5\u5982\u4f55\u88ab\u89e3\u91ca<\/span>
\u3000[type\u503c \u542b\u4e49 \u671f\u671b\u7684expr\u683c\u5f0f]:<\/span>
\u3000SECOND \u79d2 SECONDS\u00a0<\/span>
\u3000MINUTE \u5206\u949f MINUTES\u00a0<\/span>
\u3000HOUR \u65f6\u95f4 HOURS\u00a0<\/span>
\u3000DAY \u5929 DAYS\u00a0<\/span>
\u3000MONTH \u6708 MONTHS\u00a0<\/span>
\u3000YEAR \u5e74 YEARS\u00a0<\/span>
\u3000MINUTE_SECOND \u5206\u949f\u548c\u79d2 “MINUTES:SECONDS”\u00a0<\/span>
\u3000HOUR_MINUTE \u5c0f\u65f6\u548c\u5206\u949f “HOURS:MINUTES”\u00a0<\/span>
\u3000DAY_HOUR \u5929\u548c\u5c0f\u65f6 “DAYS HOURS”\u00a0<\/span>
\u3000YEAR_MONTH \u5e74\u548c\u6708 “YEARS-MONTHS”\u00a0<\/span>
\u3000HOUR_SECOND \u5c0f\u65f6, \u5206\u949f\uff0c “HOURS:MINUTES:SECONDS”\u00a0<\/span>
\u3000DAY_MINUTE \u5929, \u5c0f\u65f6, \u5206\u949f “DAYS HOURS:MINUTES”\u00a0<\/span>
\u3000DAY_SECOND \u5929, \u5c0f\u65f6, \u5206\u949f, \u79d2 “DAYS HOURS:MINUTES:SECONDS”<\/span>
\u3000expr\u4e2d\u5141\u8bb8\u4efb\u4f55\u6807\u70b9\u505a\u5206\u9694\u7b26,\u5982\u679c\u6240\u6709\u662fDATE\u503c\u65f6\u7ed3\u679c\u662f\u4e00\u4e2aDATE\u503c,\u5426\u5219\u7ed3\u679c\u662f\u4e00\u4e2aDATETIME\u503c)<\/span>
\u3000\u5982\u679ctype\u5173\u952e\u8bcd\u4e0d\u5b8c\u6574,\u5219MySQL\u4ece\u53f3\u7aef\u53d6\u503c,DAY_SECOND\u56e0\u4e3a\u7f3a\u5c11\u5c0f\u65f6\u5206\u949f\u7b49\u4e8eMINUTE_SECOND)<\/span>
\u3000\u5982\u679c\u589e\u52a0MONTH\u3001YEAR_MONTH\u6216YEAR,\u5929\u6570\u5927\u4e8e\u7ed3\u679c\u6708\u4efd\u7684\u6700\u5927\u5929\u6570\u5219\u4f7f\u7528\u6700\u5927\u5929\u6570)\u00a0<\/span>
mysql> SELECT “1997-12-31 23:59:59” INTERVAL 1 SECOND;\u00a0<\/span>
\u3000\u3000-> 1998-01-01 00:00:00\u00a0<\/span>
mysql> SELECT INTERVAL 1 DAY “1997-12-31”;\u00a0<\/span>
\u3000\u3000-> 1998-01-01\u00a0<\/span>
mysql> SELECT “1998-01-01” – INTERVAL 1 SECOND;\u00a0<\/span>
\u3000\u3000-> 1997-12-31 23:59:59\u00a0<\/span>
mysql> SELECT DATE_ADD(“1997-12-31 23:59:59”,INTERVAL 1 SECOND);\u00a0<\/span>
\u3000\u3000-> 1998-01-01 00:00:00\u00a0<\/span>
mysql> SELECT DATE_ADD(“1997-12-31 23:59:59”,INTERVAL 1 DAY);\u00a0<\/span>
\u3000\u3000-> 1998-01-01 23:59:59\u00a0<\/span>
mysql> SELECT DATE_ADD(“1997-12-31 23:59:59”,INTERVAL “1:1” MINUTE_SECOND);\u00a0<\/span>
\u3000\u3000-> 1998-01-01 00:01:00\u00a0<\/span>
mysql> SELECT DATE_SUB(“1998-01-01 00:00:00”,INTERVAL “1 1:1:1” DAY_SECOND);\u00a0<\/span>
\u3000\u3000-> 1997-12-30 22:58:59\u00a0<\/span>
mysql> SELECT DATE_ADD(“1998-01-01 00:00:00”, INTERVAL “-1 10” DAY_HOUR);<\/span>
\u3000\u3000-> 1997-12-30 14:00:00\u00a0<\/span>
mysql> SELECT DATE_SUB(“1998-01-02”, INTERVAL 31 DAY);\u00a0<\/span>
\u3000\u3000-> 1997-12-02\u00a0<\/span>
mysql> SELECT EXTRACT(YEAR FROM “1999-07-02”);\u00a0<\/span>
\u3000\u3000-> 1999\u00a0<\/span>
mysql> SELECT EXTRACT(YEAR_MONTH FROM “1999-07-02 01:02:03”);\u00a0<\/span>
\u3000\u3000-> 199907\u00a0<\/span>
mysql> SELECT EXTRACT(DAY_MINUTE FROM “1999-07-02 01:02:03”);\u00a0<\/span>
\u3000\u3000-> 20102\u00a0<\/span>
TO_DAYS(date)\u00a0<\/span>
\u3000\u8fd4\u56de\u65e5\u671fdate\u662f\u897f\u51430\u5e74\u81f3\u4eca\u591a\u5c11\u5929(\u4e0d\u8ba1\u7b971582\u5e74\u4ee5\u524d)<\/span>
mysql> select TO_DAYS(950501);\u00a0<\/span>
\u3000\u3000-> 728779\u00a0<\/span>
mysql> select TO_DAYS(‘1997-10-07’);\u00a0<\/span>
\u3000\u3000-> 729669\u00a0<\/span>
FROM_DAYS(N)\u00a0<\/span>
\u3000\u7ed9\u51fa\u897f\u51430\u5e74\u81f3\u4eca\u591a\u5c11\u5929\u8fd4\u56deDATE\u503c(\u4e0d\u8ba1\u7b971582\u5e74\u4ee5\u524d)<\/span>
mysql> select FROM_DAYS(729669);\u00a0<\/span>
\u3000\u3000-> ‘1997-10-07’\u00a0<\/span>
DATE_FORMAT(date,format)\u00a0<\/span>
\u3000\u6839\u636eformat\u5b57\u7b26\u4e32\u683c\u5f0f\u5316date\u503c<\/span>
\u3000(\u5728format\u5b57\u7b26\u4e32\u4e2d\u53ef\u7528\u6807\u5fd7\u7b26:<\/span>
\u3000%M \u6708\u540d\u5b57(January\u2026\u2026December)\u00a0<\/span>
\u3000%W \u661f\u671f\u540d\u5b57(Sunday\u2026\u2026Saturday)\u00a0<\/span>
\u3000%D \u6709\u82f1\u8bed\u524d\u7f00\u7684\u6708\u4efd\u7684\u65e5\u671f(1st, 2nd, 3rd, \u7b49\u7b49\u3002\uff09\u00a0<\/span>
\u3000%Y \u5e74, \u6570\u5b57, 4 \u4f4d\u00a0<\/span>
\u3000%y \u5e74, \u6570\u5b57, 2 \u4f4d\u00a0<\/span>
\u3000%a \u7f29\u5199\u7684\u661f\u671f\u540d\u5b57(Sun\u2026\u2026Sat)\u00a0<\/span>
\u3000%d \u6708\u4efd\u4e2d\u7684\u5929\u6570, \u6570\u5b57(00\u2026\u202631)\u00a0<\/span>
\u3000%e \u6708\u4efd\u4e2d\u7684\u5929\u6570, \u6570\u5b57(0\u2026\u202631)\u00a0<\/span>
\u3000%m \u6708, \u6570\u5b57(01\u2026\u202612)\u00a0<\/span>
\u3000%c \u6708, \u6570\u5b57(1\u2026\u202612)\u00a0<\/span>
\u3000%b \u7f29\u5199\u7684\u6708\u4efd\u540d\u5b57(Jan\u2026\u2026Dec)\u00a0<\/span>
\u3000%j \u4e00\u5e74\u4e2d\u7684\u5929\u6570(001\u2026\u2026366)\u00a0<\/span>
\u3000%H \u5c0f\u65f6(00\u2026\u202623)\u00a0<\/span>
\u3000%k \u5c0f\u65f6(0\u2026\u202623)\u00a0<\/span>
\u3000%h \u5c0f\u65f6(01\u2026\u202612)\u00a0<\/span>
\u3000%I \u5c0f\u65f6(01\u2026\u202612)\u00a0<\/span>
\u3000%l \u5c0f\u65f6(1\u2026\u202612)\u00a0<\/span>
\u3000%i \u5206\u949f, \u6570\u5b57(00\u2026\u202659)\u00a0<\/span>
\u3000%r \u65f6\u95f4,12 \u5c0f\u65f6(hh:mm:ss [AP]M)\u00a0<\/span>
\u3000%T \u65f6\u95f4,24 \u5c0f\u65f6(hh:mm:ss)\u00a0<\/span>
\u3000%S \u79d2(00\u2026\u202659)\u00a0<\/span>
\u3000%s \u79d2(00\u2026\u202659)\u00a0<\/span>
\u3000%p AM\u6216PM\u00a0<\/span>
\u3000%w \u4e00\u4e2a\u661f\u671f\u4e2d\u7684\u5929\u6570(0=Sunday \u2026\u20266=Saturday \uff09\u00a0<\/span>
\u3000%U \u661f\u671f(0\u2026\u202652), \u8fd9\u91cc\u661f\u671f\u5929\u662f\u661f\u671f\u7684\u7b2c\u4e00\u5929\u00a0<\/span>
\u3000%u \u661f\u671f(0\u2026\u202652), \u8fd9\u91cc\u661f\u671f\u4e00\u662f\u661f\u671f\u7684\u7b2c\u4e00\u5929\u00a0<\/span>
\u3000%% \u5b57\u7b26% )<\/span>
mysql> select DATE_FORMAT(‘1997-10-04 22:23:00′,’%W %M %Y’);\u00a0<\/span>
\u3000\u3000-> ‘Saturday October 1997’\u00a0<\/span>
mysql> select DATE_FORMAT(‘1997-10-04 22:23:00′,’%H:%i:%s’);\u00a0<\/span>
\u3000\u3000-> ’22:23:00′\u00a0<\/span>
mysql> select DATE_FORMAT(‘1997-10-04 22:23:00′,’%D %y %a %d %m %b %j’);\u00a0<\/span>
\u3000\u3000-> ‘4th 97 Sat 04 10 Oct 277’\u00a0<\/span>
mysql> select DATE_FORMAT(‘1997-10-04 22:23:00′,’%H %k %I %r %T %S %w’);\u00a0<\/span>
\u3000\u3000-> ’22 22 10 10:23:00 PM 22:23:00 00 6′\u00a0<\/span>
TIME_FORMAT(time,format)<\/span>
\u3000\u548cDATE_FORMAT()\u7c7b\u4f3c,\u4f46TIME_FORMAT\u53ea\u5904\u7406\u5c0f\u65f6\u3001\u5206\u949f\u548c\u79d2(\u5176\u4f59\u7b26\u53f7\u4ea7\u751f\u4e00\u4e2aNULL\u503c\u62160)<\/span>
CURDATE()\u00a0<\/span>
CURRENT_DATE()<\/span>
\u3000\u4ee5’YYYY-MM-DD’\u6216YYYYMMDD\u683c\u5f0f\u8fd4\u56de\u5f53\u524d\u65e5\u671f\u503c(\u6839\u636e\u8fd4\u56de\u503c\u6240\u5904\u4e0a\u4e0b\u6587\u662f\u5b57\u7b26\u4e32\u6216\u6570\u5b57)\u00a0<\/span>
mysql> select CURDATE();\u00a0<\/span>
\u3000\u3000-> ‘1997-12-15’\u00a0<\/span>
mysql> select CURDATE() 0;\u00a0<\/span>
\u3000\u3000-> 19971215\u00a0<\/span>
CURTIME()\u00a0<\/span>
CURRENT_TIME()<\/span>
\u3000\u4ee5’HH:MM:SS’\u6216HHMMSS\u683c\u5f0f\u8fd4\u56de\u5f53\u524d\u65f6\u95f4\u503c(\u6839\u636e\u8fd4\u56de\u503c\u6240\u5904\u4e0a\u4e0b\u6587\u662f\u5b57\u7b26\u4e32\u6216\u6570\u5b57)\u00a0<\/span>
mysql> select CURTIME();\u00a0<\/span>
\u3000\u3000-> ’23:50:26′\u00a0<\/span>
mysql> select CURTIME() 0;\u00a0<\/span>
\u3000\u3000-> 235026\u00a0<\/span>
NOW()\u00a0<\/span>
SYSDATE()\u00a0<\/span>
CURRENT_TIMESTAMP()<\/span>
\u3000\u4ee5’YYYY-MM-DD HH:MM:SS’\u6216YYYYMMDDHHMMSS\u683c\u5f0f\u8fd4\u56de\u5f53\u524d\u65e5\u671f\u65f6\u95f4(\u6839\u636e\u8fd4\u56de\u503c\u6240\u5904\u4e0a\u4e0b\u6587\u662f\u5b57\u7b26\u4e32\u6216\u6570\u5b57)\u00a0<\/span>
mysql> select NOW();\u00a0<\/span>
\u3000\u3000-> ‘1997-12-15 23:50:26’\u00a0<\/span>
mysql> select NOW() 0;\u00a0<\/span>
\u3000\u3000-> 19971215235026\u00a0<\/span>
UNIX_TIMESTAMP()\u00a0<\/span>
UNIX_TIMESTAMP(date)\u00a0<\/span>
\u3000\u8fd4\u56de\u4e00\u4e2aUnix\u65f6\u95f4\u6233(\u4ece’1970-01-01 00:00:00’GMT\u5f00\u59cb\u7684\u79d2\u6570,date\u9ed8\u8ba4\u503c\u4e3a\u5f53\u524d\u65f6\u95f4)<\/span>
mysql> select UNIX_TIMESTAMP();\u00a0<\/span>
\u3000\u3000-> 882226357\u00a0<\/span>
mysql> select UNIX_TIMESTAMP(‘1997-10-04 22:23:00’);\u00a0<\/span>
\u3000\u3000-> 875996580\u00a0<\/span>
FROM_UNIXTIME(unix_timestamp)\u00a0<\/span>
\u3000\u4ee5’YYYY-MM-DD HH:MM:SS’\u6216YYYYMMDDHHMMSS\u683c\u5f0f\u8fd4\u56de\u65f6\u95f4\u6233\u7684\u503c(\u6839\u636e\u8fd4\u56de\u503c\u6240\u5904\u4e0a\u4e0b\u6587\u662f\u5b57\u7b26\u4e32\u6216\u6570\u5b57)\u00a0<\/span>
mysql> select FROM_UNIXTIME(875996580);\u00a0<\/span>
\u3000\u3000-> ‘1997-10-04 22:23:00’\u00a0<\/span>
mysql> select FROM_UNIXTIME(875996580) 0;\u00a0<\/span>
\u3000\u3000-> 19971004222300\u00a0<\/span>
FROM_UNIXTIME(unix_timestamp,format)\u00a0<\/span>
\u3000\u4ee5format\u5b57\u7b26\u4e32\u683c\u5f0f\u8fd4\u56de\u65f6\u95f4\u6233\u7684\u503c<\/span>
mysql> select FROM_UNIXTIME(UNIX_TIMESTAMP(),’%Y %D %M %h:%i:%s %x’);\u00a0<\/span>
\u3000\u3000-> ‘1997 23rd December 03:43:30 x’\u00a0<\/span>
SEC_TO_TIME(seconds)\u00a0<\/span>
\u3000\u4ee5’HH:MM:SS’\u6216HHMMSS\u683c\u5f0f\u8fd4\u56de\u79d2\u6570\u8f6c\u6210\u7684TIME\u503c(\u6839\u636e\u8fd4\u56de\u503c\u6240\u5904\u4e0a\u4e0b\u6587\u662f\u5b57\u7b26\u4e32\u6216\u6570\u5b57)\u00a0<\/span>
mysql> select SEC_TO_TIME(2378);\u00a0<\/span>
\u3000\u3000-> ’00:39:38′\u00a0<\/span>
mysql> select SEC_TO_TIME(2378) 0;\u00a0<\/span>
\u3000\u3000-> 3938\u00a0<\/span>
TIME_TO_SEC(time)\u00a0<\/span>
\u3000\u8fd4\u56detime\u503c\u6709\u591a\u5c11\u79d2\u00a0<\/span>
mysql> select TIME_TO_SEC(’22:23:00′);\u00a0<\/span>
\u3000\u3000-> 80580\u00a0<\/span>
mysql> select TIME_TO_SEC(’00:39:38′);\u00a0<\/span>
\u3000\u3000-> 2378<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

DAYOFWEEK(date)\u00a0\u3000\u8fd4\u56de\u65e5\u671fdate\u662f\u661f\u671f\u51e0(1=\u661f\u671f\u5929,2=\u661f\u671f\u4e00,\u2026\u20267=\u661f\u671f\u516d,ODBC\u6807 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[28],"class_list":["post-164","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-mysql"],"_links":{"self":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/posts\/164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=164"}],"version-history":[{"count":0,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/posts\/164\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}