The conversion of the varchar value overflowed an int column while REPLACE - sql-server

Question

I have table with a myNumber varchar(50) column which stores values with lead zero, like a '0000001111'.
Now I want to replace leading '0000' with '12', like '12001111'.
I tried this statement:
UPDATE myDB.dbo.myTable
SET myNumber = REPLACE(myNumber, '0000', '12')
WHERE myNumber LIKE '0000%'
But this caused an error:
Msg 248, Level 16, State 1, Procedure trplist_for_Inserted_Updated_Deleted Line 80
The conversion of the varchar value "831116399075' overflowed an int column.
Why this error caused if all columns are the varchar?
What should I do?
UPDATED
Sorry guys, the reason of error it is the tables trigger.
Here is triggers logic
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER OFF
GO
ALTER TRIGGER [dbo].[trplist_for_Inserted_Updated_Deleted]
ON [dbo].[pList]
FOR Insert, Update, Delete
NOT FOR REPLICATION
AS
SET NOCOUNT ON
Declare #Result_check Int
Declare #NameTable nvarchar(30)
set #NameTable='plist'
Declare #FieldName nvarchar(30)
set #FieldName='ChangeTime'
Declare #Columns varbinary(MAX)
set #Columns=COLUMNS_UPDATED()
Execute CheckChangeFields #Columns, #NameTable, #FieldName, #Result_check
if #Result_check = 1
begin
return
end
set #FieldName='DateTimeInArchive'
Execute CheckChangeFields #Columns, #NameTable, #FieldName, #Result_check
if #Result_check = 1
begin
return
end
Declare #stateRecord Int
IF EXISTS(SELECT * FROM inserted)
IF EXISTS(SELECT * FROM deleted)
BEGIN
SET #stateRecord = 1 --Update
--PRINT 'Update'
END
ELSE
BEGIN
--PRINT 'Insert'
SET #stateRecord = 0 --Insert
END
ELSE
BEGIN
--PRINT 'Is DELETE'
IF EXISTS(SELECT * FROM deleted)
BEGIN
SET #stateRecord = 2 --Delete
--PRINT 'DELETE'
END
ELSE
BEGIN
SET #stateRecord = -1
--PRINT 'No DELETE'
END
END
IF #stateRecord = -1
RETURN
declare #id_value int
Declare #status_record int
declare #inn int
declare #Company int
declare #tabnumber varchar(50)
if (#stateRecord in (0,1))
BEGIN
--inserted or updated
--проверка на изменение поля StatusRecord
declare #Result_check_status_record int
if Exists(select * from Deleted where checksum(StatusRecord) In (select Checksum(StatusRecord) from Inserted))
select #Result_check_status_record= 1--одинаковые
else
select #Result_check_status_record= 0--разные
DECLARE cursor_inserted_trpList_Inserted_Updated_Delete_logs CURSOR LOCAL FOR select id, StatusRecord, INN, TabNumber, Company from inserted
OPEN cursor_inserted_trpList_Inserted_Updated_Delete_logs
FETCH NEXT FROM cursor_inserted_trpList_Inserted_Updated_Delete_logs INTO #id_value, #status_record,#inn, #tabnumber, #Company
WHILE ##FETCH_STATUS = 0
BEGIN
if (#inn<>'')
begin
if Exists(select id from plist where (id<> #id_value) and (INN=#inn))
begin
RollBack
RAISERROR('Данный INN уже имеется в базе', 16,2)
CLOSE cursor_inserted_trpList_Inserted_Updated_Delete_logs
return
end
end
if (#tabnumber<>'') and (#tabnumber<>'0')
begin
if #Company = 0
begin
if Exists(select id from plist where (id<> #id_value) and (TabNumber=#tabnumber) and (Company<=0))
begin
RollBack
RAISERROR('Данный TabNumber уже имеется в базе', 16,2)
CLOSE cursor_inserted_trpList_Inserted_Updated_Delete_logs
return
end
end
else
begin
if Exists(select id from plist where (id<> #id_value) and (TabNumber=#tabnumber) and (Company=#Company))
begin
RollBack
RAISERROR('Данный TabNumber уже имеется в базе в данном подразделении', 16,2)
CLOSE cursor_inserted_trpList_Inserted_Updated_Delete_logs
return
end
end
end
if ((#status_record&1)>0)
begin
if (#Result_check_status_record=0)
begin
Execute GustIsRelease #id_value
update guest set IDNoFace=0 where PListID=#id_value
Declare #dmtm datetime
if Exists(select id from plist where (id=#id_value) and (IsNull(DateTimeInArchive, '')=''))
begin
Update plist set DateTimeInArchive=GetDate() where (id=#id_value) and (IsNull(DateTimeInArchive, '')='')
end
end
end
else
begin
if Exists(select id from plist where (id=#id_value) and (IsNull(DateTimeInArchive, 1)<>1))
Update plist set DateTimeInArchive=Null where (id=#id_value) and (IsNull(DateTimeInArchive, 1)<>1)
end
FETCH NEXT FROM cursor_inserted_trpList_Inserted_Updated_Delete_logs INTO #id_value, #status_record,#inn, #tabnumber, #Company
END
CLOSE cursor_inserted_trpList_Inserted_Updated_Delete_logs
END
if (#stateRecord=2)
BEGIN
DECLARE cursor_inserted_trpList_Inserted_Updated_Delete_logs CURSOR LOCAL FOR select id from deleted
OPEN cursor_inserted_trpList_Inserted_Updated_Delete_logs
FETCH NEXT FROM cursor_inserted_trpList_Inserted_Updated_Delete_logs INTO #id_value
WHILE ##FETCH_STATUS = 0
BEGIN
if Exists(select id from pmark where owner=#id_value)
begin
RollBack
RAISERROR('У сотрудника остались активные пароли', 16,2)
CLOSE cursor_inserted_trpList_Inserted_Updated_Delete_logs
return
end
if Exists(select id from guest where IDNoFace=#id_value)
begin
RollBack
RAISERROR('Сотрудник привязан к посетителю', 16,2)
CLOSE cursor_inserted_trpList_Inserted_Updated_Delete_logs
return
end
update guest set IDNoFace=0 where IDNoFace=#id_value
update guest set ReceiveListId=0 where ReceiveListId=#id_value
FETCH NEXT FROM cursor_inserted_trpList_Inserted_Updated_Delete_logs INTO #id_value
END
CLOSE cursor_inserted_trpList_Inserted_Updated_Delete_logs
END

Answer 1

You could use STUFF
UPDATE myDB.dbo.myTable
SET myNumber=stuff(myNumber, 1,4, '12')
WHERE myNumber LIKE '0000%'

Answer 2

Use can use SUBSTRING/STUFF as below:
SUBSTRING:
UPDATE #tblTest
SET Number='12'+SUBSTRING(Number,5,LEN(NUMBER))
WHERE LEFT(Number,4)='0000'
AND LEN(Number)>4
STUFF:
UPDATE #tblTest
SET Number=STUFF(Number, 1,4, '12')
WHERE LEFT(Number,4)='0000'
AND LEN(Number)>4

Answer 3

Use substring function to accomplish the result u want
UPDATE myDB.dbo.myTable
SET Number='12'+SUBSTRING(myNumber,5)
WHERE SUBSTRING(myNumber,1,4)='0000';