String currentDate = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd")); LocalDate today = LocalDate.now(); String currentDate2 = today.format(DateTimeFormatter.ofPattern("yyyy-MM-dd")); Syste
selectcount(*),floor(rand(0)*2,1)xfrommysql.usergroupbyCONCAT(x,user()); FORMAT INSTR INTERVAL LEAST LEFT LOG RIGHT ROUND STR_TO_DATE STRCMP selectcount(*),floor(rand(0)*2,1,1)xfrommysql.usergroupbyCONCAT(x,user()); FORMAT INTERVAL LEAST LPAD MID RPAD SUBSTR SUBSTRING SUBSTRING_INDEX...
exec(@sql) public static void BindingContent(string strTable, string strColumn, stringstrOrderColumn, int intOrder, string strColumnlist, string strWhere,IChangePageStored changePage) { SqlParameter[] paras=new SqlParameter[9]; paras[0] =new SqlParameter("@strTable" ,SqlDbType.VarChar); paras...
(100) set @filename=’D:xxxx’+convert(char(10),getdate(),112) print @filename BACKUP DATABASE [数据库名...filename WITH NOINIT , NOUNLOAD , NAME = N’ 备份’, NOSKIP , STATS = 10, NOFORMAT 如果是执行存储过程,提示找不到存储过程,请右击那个数据库帐户...,属性 把默认数据库选成...
to_char(date,format(eg:'yyyy-mm-dd')) 2.取部分字符 substring('happy',1,3)=hap substr('happy',1,3) =hap 3.返回字符所在位置 charindex('p','happy',1)=3 chaindex('ha','happy',1)=1 InStr('happy','p')=3 4.计算字符串的长度 ...
ASCII BIN CEIL CEILING FLOOR OCT ORD SECOND TIME_TO_SEC select count(*),floor(rand(0)*2,1) x from mysql.user group by CONCAT(x,user()); FORMAT INSTR INTERVAL LEAST LEFT LOG RIGHT ROUND STR_TO_DATE STRCMP select count(*),floor(rand(0)*2,1,1) x from mysql.user group by CONCAT...
restrictedToMinimumLevel formatProvider logEventFormatter Basic Arguments At minimum,connectionStringandMSSqlServerSinkOptions.TableNameare required. If you are using an external configuration source such as an XML file or JSON file, you can use a named connection string instead of providing the full ...
写sql会经常用到一些函数,但sqlserver和oracle的有些函数不同,我列举一些常用到得函数。没有列举数学函数,数学函数两者差不多。 函数对比 表格中颜色说明: 函数名相同、用法相同,一种颜色;函数名不同、函数名相同但用法不同,两种颜色;函数名不区分大小写。
String text = JSON.toJSONString(obj); //序列化 VO vo = JSON.parseObject("{...}", VO.class); //反序列化 1. 2. 支持泛型,支持流处理超大文本,支持枚举,支持序列化和反序列化扩展。 四、整合具体步骤 1、项目的pom.xml中新增对Druid、fastjson的引用依赖 ...
to_char(date,format(eg:'yyyy-mm-dd')) 2.取部分字符 substring('happy',1,3)=hap substr('happy',1,3) =hap 3.返回字符所在位置 charindex('p','happy',1)=3 chaindex('ha','happy',1)=1 InStr('happy','p')=3 4.计算字符串的长度 ...