procedure TfrmClient.UniDBGrid1ColumnSummaryResult(Column: TUniDBGridColumn; GroupFieldValue: Variant; Attribs: TUniCellAttribs; var Result: string);var f: Currency;begin inherited; if SameText(Column.FieldName,'beginBalance') then begin f:=0; Client…
procedure TfrmClient.UniDBGrid1ColumnSummaryResult(Column: TUniDBGridColumn; GroupFieldValue: Variant; Attribs: TUniCellAttribs; var Result: string);var f: Currency;begin inherited; if SameText(Column.FieldName,'beginBalance') then begin f:=0; Client…
CONCATENATE命令とは文字列の結合を行う命令である.文字列を扱うChar, Numeric, Dats, Time, Stringの変数で使用する事が可能だ.単純に文字列の結合のみを行う方法.結合した文字列間に区切り文字を挿入する方法.データ型の長さに応じてスペースを挿入する方法等がある.それぞれについてサンプルコードで説明しよう. DATA: V_CHAR(15) TYPE C. CONCATENATE 'ABC' 'DEF' 'GHI' INTO V_CHAR. この例では単純に文字…
将Comment中的字符COPY至Name中 -------------------------------------------------- Option Explicit ValidationMode = True InteractiveMode = im_Batch Dim mdl ' the current model ' get the current active model Set mdl = Active…
select b.name as table_name,a.name as column_name,t.name type_name ,a.max_length ,a.precision,a.scale,isnull(c.value,N'') as memo from sys.columns a join sys.tables b on a.object_id=b.object_id and b.type=N'U'join sys.types t on a.system_typ…
public partial class Form1 : Form { public Form1() { InitializeComponent(); dataGridView1.DataSourceChanged += new EventHandler(dataGridView1_DataSourceChanged); dataGridView1.CellValueChanged += new DataGridViewCellEventHandler(dataGridView1_CellVal…
SQL总结(一)基本查询 SQL查询的事情很简单,但是常常因为很简单的事情而出错.遇到一些比较复杂的查询我们更是忘记了SQL查询的基本语法. 本文希望通过简单的总结,把常用的查询方法予以总结,希望能够明确在心. 场景:学生信息系统,包括学生信息.教师信息.专业信息和选课信息. --学生信息表 IF OBJECT_ID (N'Students', N'U') IS NOT NULL DROP TABLE Students; GO CREATE TABLE Students( ID int prim…