更新表列以删除SQL Server中不需要的双引号

Question

I want to update table entries simultaneously for all columns in one go.

Suppose in the table, there is one column EmployeeName with entries like "SAM", "Jhon" and so on...

I need all this entries under its column should appear like SAM , Jhon only... Double quotes should not be there, please provide me query for the scenario.

Thanks in advance

Answer 1

Use Replace Function as next:-

update TableName
set columnName= REPLACE(columnName,'"','')

Demo :-

Create table #Dummy (col varchar(100))

insert into #Dummy values ('"SAM", "Jhon", "Smith"')

update #Dummy
set col = REPLACE(col,'"','')


select *  from #Dummy

Result:-

SAM, Jhon, Smith

Answer 2

update table1 set column1 = case 
   when column1 = 'entity1' then 'entity2'
   when column1 like '%entity3%' then 'entity4'
   else 'entity5'
end

Answer 3

To remove left-most quote:

UPDATE MyTable
SET EmployeeName = SUBSTRING(EmployeeName, 2, LEN(EmployeeName))
WHERE LEFT(EmployeeName, 1) = '"'

To remove right-most quote:

UPDATE MyTable
SET EmployeeName = SUBSTRING(EmployeeName, 1, LEN(EmployeeName)-1)
WHERE RIGHT(EmployeeName, 1) = '"' 

Or else you can also use a simpler way to remove all the quotes at once.

update MyTable set EmployeeName = replace(EmployeeName,'"','')

Answer 4

Why not try the Replace function.

Syntax: REPLACE ( string_expression , string_pattern , string_replacement )

If your table consist the data with double quote in the column, you need to update the table with the following query;

Update <tablename>
Set <columnName> = REPLACE(<columnName>,'"','')
where <ColumnWithUniqueVale> = <something>

eg Replace(EmployeeName,'"','')