VBA允许你创建更复杂的逻辑和更灵活的解决方案。 辅助列:有时,将复杂的逻辑分解到多个辅助列中可以使问题更容易解决。你可以在辅助列中逐步应用条件逻辑,然后在最终列中汇总结果。 通过上述方法,你可以在Excel中有效地模拟SQL中的CASE WHEN多条件判断功能。
)--第四步:最终sql语句---SELECT区域,sum(CASEWHENgender=1thenpersonelse0end)as'男性人口',SUM(CASEWHENgender=0thenpersonelse0end)as'女性人口'FROMtempGROUPBY区域UNIONALLSELECT'合计',sum(CASEWHENgender=1thenpersonelse0end),SUM(CASEWHENgender=0thenpersonelse0end)FROMtemp [实例二],接上例,根据省份...
fhandle.WriteLine (" SELECT COUNT(*) INTO iExists FROM user_tables ut WHERE ut.table_name = UPPER(sTableName);") fhandle.WriteLine (" RETURN CASE WHEN iExists > 0 THEN TRUE ELSE FALSE END;") fhandle.WriteLine (" END;") fhandle.WriteLine ("") fhandle.WriteLine ("BEGIN") For i_index...
保留字(关键字)就是在VBA中被程序赋予特殊含义的单词。比如:sub和end sub表示程序的开始和结束;for表示循环;while表示循环... (4)VBA大小写不敏感 比如:定义变量Aa = 1 和变量 aA = 10,我们人可能认为两个变量不一样,但是在VBA认为这两个变量是一样的。 7.4 强制声明,常量使用 7.4.1 强制声明 通读下来,...
问Excel VBA中的SQL语法EN在Excel内部打开VBA 以及在运行之前需要开启一下家开发人员的安全性 打开的页面...
There aretwo ways to export Excel data to SQL Server using VBA: Touse ADO. Touse Excel add-insthat allow saving data and support VBA integration. You can download the example and continue reading when you try the code. Download Example ...
问VBA (Excel)与SQL -比较两行中的值(循环)ENSub 过程名() i = 1 s = 0 '初始值为0可略 ...
When it comes to big amount of data, Excel application is not the best solution to work with, in case of storage. Much better fit would be a database like Access or MSSM. In this article I’m going to show You how to connect to Microsoft SQL Server using VBA. ...
j = 1 Do While strFile <> "" Select Case strFile Case .FullName, "\book1.xls" Case Else strConnect = "Provider=MSDASQL.1;DSN=Excel Files;DBQ=" & strPath & "\" & strFile & ";HDR=Yes';" cn.Open strConnect For i = 1 To 3 Select Case j Case 1 strSQLQry = "SELECT * ...
Hello, I'm having the damnedest time trying to figure out what Excel is doing with my data. I have an Excel spreadsheet where I connect to a SQL table...