Mssql
Error log file storage location: C:\Program Files\Microsoft SQL Server\mssql\log View with Notepad
@ @ERROR Returns an integer 0 as normal
sysmessages stored Error Information system table (master)
Use master
SELECT * FROM sysmessages where error= error number to query the cause of the error
RAISERROR (50009, 16, 10) can be used in triggers to throw errors, where 50009 is an error number, or an error message description 16 10 specific rows and columns can be set themselves
You can also define a custom message
Adds a custom message to the sysmessages.
Use master
EXEC sp_addmessage 50001, 16,
N ' percentage expects a value between and 100.
Please reexecute with a more appropriate value. ', ' us_english ', false,replace
EXEC sp_addmessage 50001, 16, ' Employee code not found ', ' Simplified Chinese ', false,replace
50001 16 must be consistent first add us_english version, and then add ' Simplified Chinese '
Replace means that if there is a 50001 number of information, it will be replaced by the new information
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