cursors

call a stored procedure from the DECLARE statement when using cursors in MySQL

由 家住魔仙堡 提交于 2019-11-28 10:14:27
问题 I am trying to use a cursor in MySQL to call a stored procedure many times. I want to call it as many times as a value for my_id exists in some temporary table, and iterate through those ids and concatenate the results. Anyway, I'm having trouble with this part of the process: DECLARE curs CURSOR FOR SELECT something FROM somewhere; I don't want to select something from somewhere. I want something like DECLARE curs CURSOR FOR CALL storedproc(@an_id); Can the DECLARE statement be used to call

SQL Server Cursor Reference (Syntax, etc)

由 房东的猫 提交于 2019-11-27 07:58:38
问题 I don't use SQL Server Cursors often but when I do, I always have to look up the syntax and options. So I wanted to ask, what is the best SQL Server Cursor reference on the web?. I'm looking for a reference that explains all of the (major?) options (I.E. FAST_FORWARD) and also shows quick snippets of how to use it. (I.E. How to implement looping though a cursor and with a good practice for checking the @@FETCH_STATUS variable.) Best Regards, Frank Quick Update: I'm looking for a balance of

Using Custom Colored Cursors in a C# Windows Application

由 十年热恋 提交于 2019-11-26 23:08:58
I am developing a SDG (Single Display Groupware) application, and for that I need multiple cursors (to the simplest of different colors) for the single window. I came to know that with C# you can just use black and white cursors, which does not solve my problem. So please help me with this problem. Thanks in advance. The Cursor class is rather poorly done. For some mysterious reason it uses a legacy COM interface (IPicture), that interface doesn't support colored and animated cursors. It is fixable with some fairly ugly elbow grease: using System; using System.ComponentModel; using System

Using Custom Colored Cursors in a C# Windows Application

由 做~自己de王妃 提交于 2019-11-26 08:34:56
问题 I am developing a SDG (Single Display Groupware) application, and for that I need multiple cursors (to the simplest of different colors) for the single window. I came to know that with C# you can just use black and white cursors, which does not solve my problem. So please help me with this problem. Thanks in advance. 回答1: The Cursor class is rather poorly done. For some mysterious reason it uses a legacy COM interface (IPicture), that interface doesn't support colored and animated cursors. It
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