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| 导航： | 论坛 -> 数据库专区 斑竹:liumazi,waterstone | |||||
| 作者： |
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2023/3/14 12:50:28 | ||||
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加入我的收藏 | ||||
| 楼主： | 请教一下fdmemtable内存表如何去重 ---------------------------------------------- - |
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| 作者： |
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2023/3/15 12:31:25 | ||||
| 1楼： | 方法1: 每次Append/Insert前先Locate一下有没有已经存在的行. 方法2: fdmemtable有Index定义即索引,可以避免键重复. 方法3: 遍历去重. ---------------------------------------------- delphi|vue|golang yixsys|yixerp|mes|srm |
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2023/3/16 1:57:41 | ||||
| 2楼： | { TFDCopyDataSetOptions = set of (coStructure, coCalcFields, coIndexesReset, coIndexesCopy, coConstraintsReset, coConstraintsCopy, coAggregatesReset, coAggregatesCopy, coRestart, coAppend, coEdit, coDelete, coRefresh); } // ---------- type TForm1 = class(TForm) Button1: TButton; // FDMemTable1: TFDMemTable; FDMemTable1ID: TIntegerField; FDMemTable1NAMES: TStringField; DBGrid1: TDBGrid; DataSource1: TDataSource; // FDMemTable2: TFDMemTable; DataSource2: TDataSource; DBGrid2: TDBGrid; // procedure Button1Click(Sender: TObject); private .... procedure TForm1.Button1Click(Sender: TObject); begin // Cloning... // FDMemTable2.CloneCursor(FDMemTable1); // // // just copying... FDMemTable2.CopyDataSet(FDMemTable1, [coStructure]); FDMemTable2.CopyDataSet(FDMemTable1 { , ... } ); end; cloning...
The higher the degree, the greater the respect given to the humblest!RAD 11.3 |
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| 作者： |
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2023/3/16 2:08:56 | ||||
| 3楼： | just copying...
The higher the degree, the greater the respect given to the humblest!RAD 11.3 |
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| 作者： |
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2023/3/16 8:17:21 | ||||
| 4楼： | How is this GIF file generated ---------------------------------------------- ▄︻┻┳═ |
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| 作者： |
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2023/3/16 9:15:40 | ||||
| 5楼： | hi @lyp8899 I'm using ShareX (open source on GitHub/Microsoft Store) see my post here http://bbs.2ccc.com/topic.asp?topicid=673038
The higher the degree, the greater the respect given to the humblest!RAD 11.3 |
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| 作者： |
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2023/3/16 9:47:43 | ||||
| 6楼： | Thank you, I have downloaded and installed ---------------------------------------------- ▄︻┻┳═ |
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| 作者： |
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2023/3/16 10:13:53 | ||||
| 7楼： | ok! have a fun!!! ---------------------------------------------- The higher the degree, the greater the respect given to the humblest!RAD 11.3 |
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