"Parameter is not valid" - new Bitmap() "Recursive write lock acquisitions not allowed in this mode.? "Settings" in DLL project properties and app.config file "The function evaluation requires all threads to run" while accessing music library through wmp.dll "The left-hand side of an assig...
'INSERT EXEC' within a function did not work 'Sort' in exuction plan is showing more than 90 % cost, what to do? 'TRY_CONVERT' is not a recognized built-in function name 'VARCHAR' is not a recognized built-in function name. 'WHEN MATCHED' cannot appear more than once in a 'UPDAT...
就需要CONCAT函数了。 话不多说,上代码 这是接口,map来接受前台表单传过来的数据 这里的 AND custAgent.NAME like CONCAT(’%’, #{agentName,jdbcType=VAR...mysql-select语句中where子句使用字段为null作为查询条件的几种方式 1.使用ISNULL(字段)函数。例子:select o.id,o.sku_id from orderItem o ...
不能在where子句中使用组函数 可以在having子句中使用组函数,例如 若子句中不含有分组函数(常见组函数:avg,sum,min,max,count,wm_concat等),则二者可以通用 ,从sql优化的角度说,当两者可通用时尽量使用where,where的效率高一些 where是先过滤,再分组,having是先分组再过滤... ...
//dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_concatThis can be resolved using CAST function for arguments that need it. OTOH according to this and other reports the current state of things makes inconveniences in other ways. To resolve this contradiction the new global ...
“Reorganizing an index uses minimal system resources and is an online operation. This means long-term blocking table locks are not held and queries or updates to the underlying table can continue during the ALTER INDEX REORGANIZE transaction.”. ...
'Word.Application' is not defined "aspnet_compiler.exe" exited with code 1 "Cannot create ActiveX Component" "Exception from HRESULT: 0x800A03EC" Unable to open excel file "Failed to compare two elements in the array." "Object reference not set to an instance of an object" error which po...
This is an introduction to the Scripting Runtime Object Library. Hope I can help you. Best Regards, Julie MSDN Community Support Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other commun...
it wont return the relative or absolute to screen. it returns only the positions to the parent view. So if you have a scrollview or stacklayout goes off the screen, it will return to the absolute x, y coordinates to the scrollview. To the screen is what is visible on the screen....
I am getting Following error in c# windows application: namespace name 'WinForms' doest not exist in the class or namespace 'System' (are you missing an assembly reference?) Where I can get System.WinForms (System.WinForms.dll) Thanks & Regards, Gopalan Mani All replies (1) Monday, Au...