VBA+SQL transform pivot union联合查询的基础应用
Sub 项目状态查询()
'如果“项目状态”是未转运营那么实施状态是不能选择的,因为还没有实施。
'如果“项目状态”选择状态后,那么项目名称里面只显示该状态的项目名称。如果“项目状态”选择的不是未转运营,那么“实施状态”也要选择,并确定项目名称的选项。
'如果“统计值”是项目数,那么标题行就是客户角色。如果是实施时长,标题行就是实施的时间。
lst = Range("a1048576").End(xlUp).Row
If lst >= 4 Then
Range("a4:afd" & lst).ClearContents
End If
sAddress = ThisWorkbook.FullName
If Range("b1") = "未转运营" Or Range("b1") = "全部" Then
sAddress1 = Sheets("销售").Range("a3").CurrentRegion.Address(0, 0)
If Range("b1") = "全部" Then
temp1 = "辅助列"
Else
temp1 = "项目状态"
End If
If Range("d1") = "全部" Then
temp2 = "辅助列"
Else
temp2 = "城市维度"
End If
If Range("d2") = "全部" Then
temp3 = "辅助列"
Else
temp3 = "加盟类型"
End If
If Range("h2") = "全部" Then
temp4 = "辅助列"
Else
temp4 = "项目名称"
End If
Set cnn = CreateObject("ADODB.Connection")
Set rs = CreateObject("ADODB.Recordset")
cnn.Open "Provider=microsoft.Ace.oledb.12.0;Extended Properties=Excel 12.0;Data Source=" & sAddress
strsql = "select * from [销售$" & sAddress1 & "] where " & temp1 & " = '" & Range("b1") & "' and " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "'"
strsql = "select " & Range("b3").Value & " , " & Range("b2").Value & " , count(*) as 统计 from (select * from [销售$" & sAddress1 & "] where " & temp1 & " = '" & Range("b1") & "' and " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "') group by " & Range("b3").Value & " , " & Range("b2").Value & ""
strsql = "transform count(*) select " & Range("b2").Value & " as 统计 from (select * from [销售$" & sAddress1 & "] where " & temp1 & " = '" & Range("b1") & "' and " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "') group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b3").Value & ""
strsql = "transform count(*) select " & Range("b3").Value & " as 统计 from (select * from [销售$" & sAddress1 & "] where " & temp1 & " = '" & Range("b1") & "' and " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "') group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b2").Value & ""
strsql = "transform count(*) select " & Range("b3").Value & " as 统计 from (select * from [销售$" & sAddress1 & "] where " & temp1 & " = '" & Range("b1") & "' and " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "') group by " & Range("b3").Value & " pivot " & Range("b2").Value & ""
strsql = "transform count(*) select " & Range("b2").Value & " as 统计 from (select * from [销售$" & sAddress1 & "] where " & temp1 & " = '" & Range("b1") & "' and " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "') group by " & Range("b2").Value & " pivot " & Range("b3").Value & ""
'sum(iif(isnull(项目名称),0,1))
rs.Open (strsql), cnn
Cells(5, 1).CopyFromRecordset cnn.Execute(strsql)
For Each Field In rs.Fields
aa = Field.Name
[a4].Offset(0, i) = Field.Name
i = i + 1
Next
Set rs = Nothing
Set cnn = Nothing
'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ElseIf Range("b1") = "销售转运营" And Range("h1") = "项目数" Then
sAddress1 = Sheets("实施").Range("a3").CurrentRegion.Address(0, 0)
If Range("d1") = "全部" Then
temp2 = "辅助列"
Else
temp2 = "城市维度"
End If
If Range("d2") = "全部" Then
temp3 = "辅助列"
Else
temp3 = "加盟类型"
End If
If Range("h2") = "全部" Then
temp4 = "辅助列"
Else
temp4 = "项目名称"
End If
If Range("f1") = "全部" Then
temp5 = "辅助列"
Else
temp5 = "实施进度"
End If
If Range("f2") = "全部" Then
temp6 = "辅助列"
Else
temp6 = "实施类型"
End If
Set cnn = CreateObject("ADODB.Connection")
Set rs = CreateObject("ADODB.Recordset")
cnn.Open "Provider=microsoft.Ace.oledb.12.0;Extended Properties=Excel 12.0;Data Source=" & sAddress
strsql = "select * from [实施$" & sAddress1 & "] where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "' and " & temp5 & " = '" & Range("f1") & "' and " & temp6 & " = " & "'" & Range("f2") & "'"
strsql = "select " & Range("b3").Value & " , " & Range("b2").Value & " , count(*) as 统计 from (select * from [实施$" & sAddress1 & "] where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "' and " & temp5 & " = '" & Range("f1") & "' and " & temp6 & " = " & "'" & Range("f2") & "') group by " & Range("b3").Value & " , " & Range("b2").Value & ""
strsql = "transform count(*) select " & Range("b2").Value & " as 统计 from (select * from [实施$" & sAddress1 & "] where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "' and " & temp5 & " = '" & Range("f1") & "' and " & temp6 & " = " & "'" & Range("f2") & "') group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b3").Value & ""
strsql = "transform count(*) select " & Range("b3").Value & " as 统计 from (select * from [实施$" & sAddress1 & "] where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "' and " & temp5 & " = '" & Range("f1") & "' and " & temp6 & " = " & "'" & Range("f2") & "') group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b2").Value & ""
strsql = "transform count(*) select " & Range("b3").Value & " as 统计 from (select * from [实施$" & sAddress1 & "] where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "' and " & temp5 & " = '" & Range("f1") & "' and " & temp6 & " = " & "'" & Range("f2") & "') group by " & Range("b3").Value & " pivot " & Range("b2").Value & ""
strsql = "transform count(*) select " & Range("b2").Value & " as 统计 from (select * from [实施$" & sAddress1 & "] where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' and " & temp4 & " = " & "'" & Range("h2") & "' and " & temp5 & " = '" & Range("f1") & "' and " & temp6 & " = " & "'" & Range("f2") & "') group by " & Range("b2").Value & " pivot " & Range("b3").Value & ""
'sum(iif(isnull(项目名称),0,1))
rs.Open (strsql), cnn
Cells(5, 1).CopyFromRecordset cnn.Execute(strsql)
For Each Field In rs.Fields
aa = Field.Name
[a4].Offset(0, i) = Field.Name
i = i + 1
Next
Set rs = Nothing
Set cnn = Nothing
'+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ElseIf Range("b1") = "销售转运营" And Range("h1") <> "项目数" Then
sAddress1 = Sheets("实施").Range("a3").CurrentRegion.Address(0, 0)
If Range("d1") = "全部" Then
temp2 = "辅助列"
Else
temp2 = "城市维度"
End If
If Range("d2") = "全部" Then
temp3 = "辅助列"
Else
temp3 = "加盟类型"
End If
If Range("f1") = "全部" Then
temp4 = "辅助列"
Else
temp4 = "实施进度"
End If
If Range("f2") = "全部" Then
temp5 = "辅助列"
Else
temp5 = "实施类型"
End If
If Range("h2") = "全部" Then
temp6 = "辅助列"
Else
temp6 = "项目名称"
End If
Set cnn = CreateObject("ADODB.Connection")
Set rs = CreateObject("ADODB.Recordset")
cnn.Open "Provider=microsoft.Ace.oledb.12.0;Extended Properties=Excel 12.0;Data Source=" & sAddress
str1 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',项目开始时间,项目结束时间) as 天数,运营经理人数 as 人数,运营经理成本 as 成本,'运营经理' as 岗位,'城市运营组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
str2 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',仓调研开始日期,仓调研结束日期) as 天数,仓调研人数 as 人数,仓调研成本 as 成本,'仓调研' as 岗位,'仓运营组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
str3 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',配调研开始日期,配调研结束日期) as 天数,配调研人数 as 人数,配调研成本 as 成本,'配调研' as 岗位,'配运营组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
str4 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',仓库规划实施开始日期,仓库规划实施结束日期) as 天数,仓规划人数 as 人数,规划成本 as 成本,'仓规划' as 岗位,'仓库规划组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
str5 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',实施筹备开始日期,系统上线日期) as 天数,实施人数 as 人数,实施人员成本 as 成本,'实施' as 岗位, '实施组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
str6 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',B2B进件资料审核开始时间,商品B2B平台发布上架日期) as 天数,电商人数 as 人数,null as 成本,'电商客服' as 岗位,'客服组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
str7 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',首次入仓日期,首次发货日期) as 天数,库房人数 as 人数,null as 成本,'库房' as 岗位,'仓库运营组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
str8 = "select 销售转运营日期,周期维度,项目名称,城市维度,加盟类型,客户角色,仓库名,实施进度,项目阶段,阶段状态,实施类型,辅助列,月份维度," & _
" datediff('d',驻场日期,离场日期) as 天数,驻场人数 as 人数,null as 成本,'驻场' as 岗位,'城市运营组' as 组名 from [实施$" & sAddress1 & "] " & _
" where " & temp2 & " = '" & Range("d1") & "' and " & temp3 & " = '" & Range("d2") & "' " & _
" and " & temp4 & " = " & "'" & Range("f1") & "' and " & temp5 & " = " & "'" & Range("f2") & "' " & _
" and " & temp6 & " = " & "'" & Range("h2") & "'"
strtotal = str1 & " union all " & str2 & " union all " & str3 & " union all " & str4 & " union all " & str5 & " union all " & str6 & " union all " & str7 & " union all " & str8
If Range("h1") = "实施人天(avg)" Then
strsql = "select " & Range("b3").Value & " , " & Range("b2").Value & " , avg(人数*天数) as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & ""
strsql = "transform avg(人数*天数) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b3").Value & ""
strsql = "transform avg(人数*天数) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b2").Value & ""
strsql = "transform avg(人数*天数) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " pivot " & Range("b2").Value & ""
strsql = "transform avg(人数*天数) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b2").Value & " pivot " & Range("b3").Value & ""
ElseIf Range("h1") = "实施人天(sum)" Then
strsql = "select " & Range("b3").Value & " , " & Range("b2").Value & " , sum(人数*天数) as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & ""
strsql = "transform sum(人数*天数) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b3").Value & ""
strsql = "transform sum(人数*天数) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b2").Value & ""
strsql = "transform sum(人数*天数) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " pivot " & Range("b2").Value & ""
strsql = "transform sum(人数*天数) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b2").Value & " pivot " & Range("b3").Value & ""
ElseIf Range("h1") = "成本(avg)" Then
strsql = "select " & Range("b3").Value & " , " & Range("b2").Value & " , avg(成本) as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & ""
strsql = "transform avg(成本) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b3").Value & ""
strsql = "transform avg(成本) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b2").Value & ""
strsql = "transform avg(成本) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " pivot " & Range("b2").Value & ""
strsql = "transform avg(成本) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b2").Value & " pivot " & Range("b3").Value & ""
ElseIf Range("h1") = "成本(sum)" Then
strsql = "select " & Range("b3").Value & " , " & Range("b2").Value & " , sum(成本) as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & ""
strsql = "transform sum(成本) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b3").Value & ""
strsql = "transform sum(成本) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b2").Value & ""
strsql = "transform sum(成本) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " pivot " & Range("b2").Value & ""
strsql = "transform sum(成本) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b2").Value & " pivot " & Range("b3").Value & ""
'ElseIf Range("h1") = "项目数" Then
'
'strsql = "select " & Range("b3").Value & " , " & Range("b2").Value & " , count(*) as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & ""
'
'strsql = "transform count(*) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b3").Value & ""
'
'strsql = "transform count(*) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " , " & Range("b2").Value & " pivot " & Range("b2").Value & ""
'
'strsql = "transform count(*) select " & Range("b3").Value & " as 统计 from (" & strtotal & ") group by " & Range("b3").Value & " pivot " & Range("b2").Value & ""
'
'strsql = "transform count(*) select " & Range("b2").Value & " as 统计 from (" & strtotal & ") group by " & Range("b2").Value & " pivot " & Range("b3").Value & ""
End If
rs.Open (strsql), cnn
Cells(5, 1).CopyFromRecordset cnn.Execute(strsql)
For Each Field In rs.Fields
aa = Field.Name
[a4].Offset(0, i) = Field.Name
i = i + 1
Next
Set rs = Nothing
Set cnn = Nothing
Else
'+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
End If
lst = Range("a1048576").End(xlUp).Row
If Range("b2") = "月份维度" Then
Range("A5:A" & lst).Select
Selection.NumberFormatLocal = "yyyy""-""m"
Range("A4:afd4").Select
Selection.AutoFilter
ActiveWorkbook.Worksheets("项目状态查询").AutoFilter.Sort.SortFields.Clear
ActiveWorkbook.Worksheets("项目状态查询").AutoFilter.Sort.SortFields.Add Key:=Range _
("A4"), SortOn:=xlSortOnValues, Order:=xlAscending, DataOption:= _
xlSortTextAsNumbers
With ActiveWorkbook.Worksheets("项目状态查询").AutoFilter.Sort
.Header = xlYes
.MatchCase = False
.Orientation = xlTopToBottom
.SortMethod = xlPinYin
.Apply
End With
ElseIf Range("b2") = "周期维度" Then
'Selection.NumberFormatLocal = "0""周"""
Range("A5:A" & lst).Select
Selection.NumberFormatLocal = "0""周"""
Range("A4:afd4").Select
Selection.AutoFilter
ActiveWorkbook.Worksheets("项目状态查询").AutoFilter.Sort.SortFields.Clear
ActiveWorkbook.Worksheets("项目状态查询").AutoFilter.Sort.SortFields.Add Key:=Range _
("A4"), SortOn:=xlSortOnValues, Order:=xlAscending, DataOption:= _
xlSortTextAsNumbers
With ActiveWorkbook.Worksheets("项目状态查询").AutoFilter.Sort
.Header = xlYes
.MatchCase = False
.Orientation = xlTopToBottom
.SortMethod = xlPinYin
.Apply
End With
End If
End Sub
VBA+SQL transform pivot union联合查询的基础应用的更多相关文章
- [办公自动化] 再读《让EXCEL飞》(从excel导入access数据时,union联合查询,数据源中没有包含可见的表格)
一年多以前就买了@Mrexcel的<让excel飞>这本书.整体思路是利用access结合excel,大幅度提高数据分析效率. 最近又拿出来看了看.第十五章,比高级筛选更“高级”,P241 ...
- SQL server多表联合查询
参考网址: https://blog.csdn.net/zou15093087438/article/details/79226394 1. 外连接可分为:左连接.右连接.完全外连接. a. 左连接 ...
- SqlSever基础 union 联合查询,厉害的并集 重复项只显示一个 两个查询结果并在一起后排序
镇场诗:---大梦谁觉,水月中建博客.百千磨难,才知世事无常.---今持佛语,技术无量愿学.愿尽所学,铸一良心博客.------------------------------------------ ...
- SQL Server 使用union all查询多个条件数据合并分组显示,同比统计
),a.created_yearmonth,) created_yearmonth, a.countaccount countaccount, a.yxsl yxsl, a.sccdsl sccdsl ...
- laravel4.2 union联合,join关联分组查询最新记录时,查询条件不对,解决方案
需求: 分组联合查询,或者最新记录. 问题: mysql分组的时候默认会查询第一条记录,存在gourp by时 order by 无效. 一般解决办法就是 ,select * from ( sele ...
- SQL in优化将In转化为联合查询
in查询有时候会非常影响性能,最好能转化为联合查询,但有的网友说sqlserver会自动将in转化为联合查询,但我实际遇到的有时候却不是这样.所以最好还是不要用in. 我自己的例子,用in的时候耗费了 ...
- SQL语句(六)分页查询和联合查询
目录 一.分页查询 语法格式 应用 二.联合查询 语法和作用 特点 应用 UNION和UNION ALL的区别 一.分页查询 语法格式 SELECT 查询列表 FROM 表 WHERE ... GRO ...
- MySQL开发——【联合查询、多表连接、子查询】
联合查询 所谓的联合查询就是将满足条件的结果进行拼接在同一张表中. 基本语法: select */字段 from 数据表1 union [all | distinct] select */字段 fro ...
- (五)连接查询(SQL99标准)、子查询、分页查询、联合查询
一.连接查询(SQL99标准) 1.含义:当要查询的数据来自多张表时要使用连接查询 2.语法: select 查询列表 from 表1 别名 [连接类型] join 表2 别名 on 连接条件 [wh ...
随机推荐
- poi解析word文档转换成html(包括图片解析)
需求:将本地上传的word文档解析并放入数据库中 代码: import java.io.ByteArrayOutputStream;import java.io.File;import java.io ...
- 挂载时出现mount: RPC: Unable to receive; errno = Connection refused错误的解决方法
当我们在做NFS开发板下挂载时,经常会出现mount: RPC: Unable to receive; errno = Connection refused的错误,连接被拒绝了,到底是什么原因呢? 这 ...
- npm install 时 提示err code EINTEGRITY报错
1.报错截图如图: 2.报错缘由:因npm 版本问题导致 3.解决方法:升级npm版本(npm i -g npm),再重新npm install即可.
- springmvc基于注解的权限控制
一.权限码 /** * @Title: AuthCode.java * @Package cn.com.kamfu.auth * @Description: TODO(用一句话描述该文件做什么) * ...
- PHP-删除排序数组中的重复项
给定一个排序数组,你需要在原地删除重复出现的元素,使得每个元素只出现一次,返回移除后数组的新长度. 不要使用额外的数组空间,你必须在原地修改输入数组并在使用 O(1) 额外空间的条件下完成. 示例 1 ...
- 网络基础之TCP/IP协议族
一.TCP/IP协议族 1.什么是协议? 计算机与网络设备相互通信依赖于相同的方法,比如,双方通信基于何种语言等.而把通信所依赖的这一切方法统称为规则,而我们就把这种规则称为协议. 协议中存在各种各样 ...
- MyEclipse6.0中使用aptana插件,添加jquery提示功能
MyEclipse6.0中使用aptana插件,添加jquery提示功能 第一:查看当前MyEclipse集成的eclipse的版本,, 查看路径 D:/MyEclipse 6.0/eclips ...
- CCC2018 最大战略储备
并查集基本处理即可. #include <cstdio> #include <iostream> #include <algorithm> #include < ...
- Openfire调整成自己的IM部署到LInux系统上
部署自己的IM到Linux系统下:需要生成相关jar包再部署 1.在myeclipse上把openfire源代码加在加载进来,做相应调整后,运行测试没问题 2. 编译admin-jsp.jar(所有 ...
- 基于V8的JsonMapper
<dependency> <groupId>com.eclipsesource.j2v8</groupId> <artifactId>j2v8_win3 ...