cursor

SELECT INTO 和 INSERT INTO SELECT 两种表复制语句

这一生的挚爱 提交于 2021-02-20 13:29:57
Insert是T-sql中常用语句,Insert INTO table(field1,field2,...) values(value1,value2,...)这种形式的在应用程序开发中必不可少。但我们在开发、测试过程中,经常会遇到需要表复制的情况,如将 一个table1的数据的部分字段复制到table2中,或者将整个table1复制到table2中,这时候我们就要使用 SELECT INTO 和 INSERT INTO SELECT 表复制语句了。 1. INSERT INTO SELECT语句 语句形式为: Insert into Table2(field1,field2,...) select value1,value2,... from Table1 要求目标表Table2必须存在,由于目标表Table2已经存在,所以我们除了插入源表Table1的字段外,还可以插入常量。示例如下: -- 1.创建测试表 create TABLE Table1 ( a varchar ( 10 ), b varchar ( 10 ), c varchar ( 10 ), CONSTRAINT [ PK_Table1 ] PRIMARY KEY CLUSTERED ( a ASC ) ) ON [ PRIMARY ] create TABLE Table2 ( a varchar ( 10 )

How to control a cursor position in c++ console application?

前提是你 提交于 2021-02-19 09:12:46
问题 I'm supposed to create a console application for school project and it's about Sudoku Game, so the thing is i don't find any struggle with the algorithm, but i was wondering if i could draw the full Sodoku table with c++ and make empty squares as "data" input place so the user can move the cursor using the arrow keys to the specific number's place to fill it with the appropriate number. is there a method to do it this way ? 回答1: It depends on your OS/Compiler. For example, in VC++ you can use

How to control a cursor position in c++ console application?

家住魔仙堡 提交于 2021-02-19 09:11:21
问题 I'm supposed to create a console application for school project and it's about Sudoku Game, so the thing is i don't find any struggle with the algorithm, but i was wondering if i could draw the full Sodoku table with c++ and make empty squares as "data" input place so the user can move the cursor using the arrow keys to the specific number's place to fill it with the appropriate number. is there a method to do it this way ? 回答1: It depends on your OS/Compiler. For example, in VC++ you can use

How to control a cursor position in c++ console application?

▼魔方 西西 提交于 2021-02-19 09:09:00
问题 I'm supposed to create a console application for school project and it's about Sudoku Game, so the thing is i don't find any struggle with the algorithm, but i was wondering if i could draw the full Sodoku table with c++ and make empty squares as "data" input place so the user can move the cursor using the arrow keys to the specific number's place to fill it with the appropriate number. is there a method to do it this way ? 回答1: It depends on your OS/Compiler. For example, in VC++ you can use

How to control a cursor position in c++ console application?

若如初见. 提交于 2021-02-19 09:07:21
问题 I'm supposed to create a console application for school project and it's about Sudoku Game, so the thing is i don't find any struggle with the algorithm, but i was wondering if i could draw the full Sodoku table with c++ and make empty squares as "data" input place so the user can move the cursor using the arrow keys to the specific number's place to fill it with the appropriate number. is there a method to do it this way ? 回答1: It depends on your OS/Compiler. For example, in VC++ you can use

SetCursor while dragging files into a window

时光毁灭记忆、已成空白 提交于 2021-02-19 08:01:28
问题 I'm using windows API to create an application with a window only, so everything inside this window is drawn using Direct2D. Now I want to drop some files in specific parts of my window's client area, and I'm handling the message WM_DROPFILES . No problem here, when the files are dropped in those specific areas, I can treat them correctly and everything is working properly. BTW, my window is DragAcceptFiles(hWnd, true) , it always accepts drag/drops. I want the mouse cursor to be different

sqlite.SQLiteException: near “s”: syntax error: because of apostrophe

杀马特。学长 韩版系。学妹 提交于 2021-02-19 07:14:26
问题 The song name that I want to insert it into my table contains a " ' " (apostrophe )so , there is an error when the request is excuted. How can I fix it Cursor pid = mDB.rawQuery("select Id FROM MusicPlayer WHERE "Path ='" + sname + "';", null); I am getting sname runtime so .. sname= /mnt/sdcard/Now Thats What I Call Music 85 [Bubanee]/16 - Let's Get Ready To Rhumble (100% Radio Mix) - PJ & Duncan.mp3 I get below error.. android.database.sqlite.SQLiteException: near "s": syntax error: , while

sqlite.SQLiteException: near “s”: syntax error: because of apostrophe

会有一股神秘感。 提交于 2021-02-19 07:13:34
问题 The song name that I want to insert it into my table contains a " ' " (apostrophe )so , there is an error when the request is excuted. How can I fix it Cursor pid = mDB.rawQuery("select Id FROM MusicPlayer WHERE "Path ='" + sname + "';", null); I am getting sname runtime so .. sname= /mnt/sdcard/Now Thats What I Call Music 85 [Bubanee]/16 - Let's Get Ready To Rhumble (100% Radio Mix) - PJ & Duncan.mp3 I get below error.. android.database.sqlite.SQLiteException: near "s": syntax error: , while

Cursor position in relation to self.view

和自甴很熟 提交于 2021-02-19 06:53:04
问题 There are many answers to get cursor CGPoint within UITextView. But I need to find a position of cursor in relation to self.view (or phone screen borders). Is there a way to do so in Objective-C? 回答1: UIView has a convert(_:to:) method that does exactly that. It converts coordinates from the receiver coordinate space to another view coordinate space. Here is an example: Objective-C UITextView *textView = [[UITextView alloc] initWithFrame:CGRectZero]; UITextRange *selectedTextRange = textView

Cursor disappears on bitblt

烈酒焚心 提交于 2021-02-19 05:47:25
问题 I have a windows application that scrapes pixels from the screen for recording (in the form of a video) to a custom screen-sharing format. The problem is that on machines using a software cursor, blitting from the screen with SRCCOPY|CAPTUREBLIT (so that layered windows also show up in the image) causes the cursor to blink, as described in Case of the Disappearing Cursor. For single screen shots, this is not a problem, but when multiple screen shots are taken in rapid succession, the cursor