sql server - writing a transaction in t-sql and error handling -

-

U think there is a better way to write a transaction in T-SQL? ? Email receiver under specified subject - ==========: Description - There is a better view that maintains and that uses this transaction 

  Application performance is better =================================== ALTER PROCESS [CONTACT]. [Receiver_stpInsert] @First_Name nvarchar (30), @Last_Name nvarchar (30), @ Email Marketing (60), Get started as @Subject_Id Int session note; DECLARE @error_num int; Start transactions INSERT INTO Contact.Receiver (FIRST_NAME, LAST_NAME, email) prices (@First_Name, @Last_Name, @Email); SET @error_num = @@ error; IF (@error_num & lt;> 0) BEGIN Rollback; Return; End DECLARE @rec_record_id int; SET @rec_record_id = (contact record_id contact. Receiver where email = @ email); SET @error_num = @@ error; IF (@error_num & lt;> 0) BEGIN Rollback; Return; End INSERT INTO Contact.Receiver_Subject (Receiver_Id, Subject_Id) values ​​(@rec_record_id, @Subject_Id); SET @error_num = @@ error; IF (@error_num & lt;> 0) BEGIN Rollback; Return; END SET @error_num = @@ error; IF (@error_num & lt;> 0) BEGIN Rollback; Return; Start at the end; If you are using SQL 2005 or later, you can use the block. , Like this:    BEGIN Transactions in the beginning; INSERT INTO Contact.Receiver (FIRST_NAME, LAST_NAME, email) prices (@First_Name, @Last_Name, @Email); ... other inserts etc ... transfer contract; Finally catch if @@ transcount & gt; 0 rollback transactions; End catches;

In this way, you keep repeating blocks similar to code @@ error If you want to know how the error is, you can get different bits of information in the BEGIN catch block:

  • Returns the number of errors.
  • ERROR_SEVERITY () gives seriousness.
  • Returns the error state number.
  • ERROR_PROCEDURE () returns the stored procedure name or triggers when the error occurs.
  • ERROR_LINE () returns the line number inside the routine, causing an error.
  • ERROR_MESSAGE () Returns the full text of the error message The text contains values ​​for any replacement parameters, such as length, object name, or time.

Comments

Post a Comment

Popular posts from this blog

php - multilevel menu with multilevel array -

-
Just ask someone to solve this problem? I want to create a multilevel menu I can not find the right solution generated with multilevel array, it always gets an array_push error My study came from the original idea But still my Can not match the need. This is my MySQL [code] ----- --------------------- --------------- | ID | PARENT_ID | Name | Link | Seq | 1 | 0 | Dashboad | Dashboard / | 1 | 2 | 0 | Menu 1 | Menu 1 / | 2 | 3 | 0 | Menu 2 | Menu 2 / | 3 | 4 | 0 | Menu 3 | Menu 3 / | 4 | 5 | 2 | Joint Add / | 1 | 6 | 3 | Joint Add / | 1 | 7 | 2 | Edit | Edit / | 2 | 8 | 4 | Joint Add / | 1 ------------------------------------------ [/ Code] I want to do something like this in my array array ('dashboard' = & gt; array ('id' = & gt; '' 'Dame' = & gt; 'Dashboard', 'Title' = & gt; 'Dashboard', 'MatchMin' = & gt; Base_URL (). 'Dashboard /', 'Active' => = & Gt; NULL), &
Read more

c# - TypeConverter in propertygrid only converts from string, not to -

-
When the property grid is reached, only the conversion mechanism (often called) is called "Foo!" Returns the property string in the grid when I click to edit I get an exception Type.oo. Object type can not be changed to type. (Not properly translated,) What is a clue from the convert format, why not? And the error indicates that it is trying to convert to a string, not from. I think that when I want to edit this object, it will have to be converted from foo to string, and when the editing ends. Public class FooTypeConverter: StringConverter {public override object ConvertFrom (ITypeDescriptorContext Reference, CultureInfo Culture, Object Value) {New Foo (string) value); } Convert the public override object (Type the ITE DiskText Contact Reference, CultureInfo Culture, Object Value, Type Type) {Return "Foo!"; } Public override bool CanConvertFrom (ITypeDescriptorContext reference, type source type) {back true; } Public Override Bull CanConvertTo (ITypeDescrip
Read more

jQuery UI: Datepicker month format -

-
I am trying to change the format of the month that shows in the popup (not in the date that the picker actually I do not have any choice anywhere to do this, do I like to use a sub-string () or something else? What I normally display is Trying to change: Class = "ui-datepicker-title"> January & lt; / span & gt; ... & lt; / div & gt; Div>
Read more