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ceil和floor函数在一些业务数据的时候,有时还是很有用的。 ceil(n) 取大于等于数值n的最小整数; floor(n)取小于等于数值n的最大整数 如下例子 SQL> select ceil(9.5) from dual; CEIL(9.5) 10 SQL> select floor(9.5 阅读全文
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update tb_fdn_deviceaccount set czMC =replace(czMC,'站','') where zdmc in ('大连站','沈阳北站');delete from tb_fdn_deviceaccount where zdmc is null;update tb_ 阅读全文
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--编号declare v_cnt number; V_SQL VARCHAR2 (500) := '';begin select count(*) into v_cnt from dual where exists(SELECT * FROM USER_TAB_COLUMNS WHERE TABL 阅读全文
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declare v_cnt number; V_SQL VARCHAR2 (500) := '';begin select count(*) into v_cnt from dual where exists(SELECT * FROM user_tables WHERE TABLE_NAME = 阅读全文
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using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Runtime.Remoting.Contexts;using System.Web;using System.W 阅读全文
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/^[+-]?\d+(\.\d+)?$|^$|^(\d+|\-){7,}$/ 阅读全文
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SELECT w.ZDBH,w.HEATINGANDAIRCONDITIONERID, w.ZDMC, w.CZBH, w.CZMC, w.CNXS, w.ND, w.KTJF, w.KTJFMJ, w.KTZY, w.KTCS, w.KTJ, h.hMJ HCOUNT, a.hmj KCOUNTF 阅读全文
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select train_code,count(1) from tb_ask_trainbodyroadtrain group by train_code having count(1) >1 阅读全文
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using KYZWeb.Common;using Liger.Data;//using Microsoft.Office.Interop.Excel;using System;using System.Collections.Generic;using System.Data;using Syst 阅读全文
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字体属性:(font)大小 {font-size: x-large;}(特大) xx-small;(极小) 一般中文用不到,只要用数值就可以,单位:PX、PD样式 {font-style: oblique;}(偏斜体) italic;(斜体) normal;(正常)行高 {line-height: 阅读全文