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I need to add spaces before a column in SQL.
For example, I have a column with a value "00:99:88:aa". I need to add 3 spaces before the value to have the value " 00:99:88:aa". How would I do this?
You need to apply string concatenation.
For MySQL and MariaDB
SELECT concat(' ', '00:99:88:aa') FROM ...
or in the event of an update
UPDATE ...
SET value = concat(' ', value)
For SQL Server
SELECT ' ' + '00:99:88:aa' FROM ...
or in the event of an update
UPDATE ...
SET value = ' ' + value
For MS Access
SELECT ' ' & '00:99:88:aa' FROM ...
or in the event of an update
UPDATE ...
SET value = ' ' & value
For all the others
SELECT ' ' || '00:99:88:aa' FROM ...
or in the event of an update
UPDATE ...
SET value = ' ' || value
create a new column
alter table <table_name>
add <temp_column> varchar(10)
Update this new column with three space string
update <table_name> set <temp_column> = " "
concatenate the two columns
select concat(temp_column,column1) from <table_name>
OR add a new column with this value
ON MySql TRY:
UPDATE `table` SET `column` = CONCAT(" ", `column`);
Related
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db access table
kindly i need help to fill down with previous string PS: i am a beginner
Your Date field seems to be of data type Text. If so, change that to DateTime.
Then you can run a loop to update the records having no date value:
Dim Records As DAO.Recordset
Dim Sql As String
Dim LastDate As Date
Sql = "Select * From YourTable Order By [Surevey ID]"
Set Records = CurrentDb.OpenRecordset(Sql)
If Records.RecordCount > 0 Then
LastDate = Date ' Adjust if needed.
Records.MoveFirst
While Not Records.EOF
If IsNull(Records!Date.Value) Then
Records.Edit
Records!Date.Value = LastDate
Records.Update
Else
LastDate = Records!Date.Value
End If
Records.MoveNext
Wend
End If
Records.Close
So basically I have a column called 'query' which contains a query. I need to update that query but don't know how.
I tried a simple
UPDATE TABLE
SET QUERY = 'New Query'
WHERE ID = 1
but it's getting thrown out because of the pre-existing ' ' that I have in the query.
Way out of my league on this one. Trying to learn on the fly for a position that's going to open up.
You'll have to escape the ' in the query, possibly by doubling them up or using an escape char before them:
UPDATE t
SET query = 'DELETE FROM x WHERE y = ''z'' '
WHERE ID = 1
UPDATE t
SET query = 'DELETE FROM x WHERE y = \'z\' ' ESCAPE '\'
WHERE ID = 1
You can also make life easier/neater with REPLACE, like:
UPDATE t
SET query = REPLACE('DELETE FROM x WHERE y = "z" AND a = "b" AND c = "d" ', '"', CHAR(39))
This way you can use some char all through that doesn't occur naturally in the query, and replace it with ' at the end
I can't say which variant works for your DB because you didn't say what your DB was..
WHERE ID = 1
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I want to order Recordset by setting priority when ID is in an array:
This is the comma separated myString which holds a series of ID: ,1,2,4,6,8,12,34,
I use concat to add comma before and after ID so I can compare it against the string:
sql="select * from customers order by case when charindex( concat(','," & id & ",',') , '" & myString & "' )>0 then 1 else 0 end desc"
I get syntax error message. I am not sure if there is error in SQL structure as I used concat in deep structure or there is error in using quote and double quote?
I found the problem when trying to answer #Diado Comment. The parameter ID should be used in SQL context not as a variable in VbScript context. So I have changed the query to this and it works:
sql="select * from customers order by case when charindex( concat(',',id,',') , '" & myString & "' )>0 then 1 else 0 end desc"
I'm doing an update but the value has ' and " quotes,
How do I proceed?
This is how my query looks like
Update Users
set info = '[user{"LinkAction('togglemore', 'companies','jobs')","IsVisible":true}]'
where user like '%admin%'
How do i make the SET to consider everything in the ' single quote '
You can use two single quote ''
Update Users
set info = '[user{"LinkAction(''togglemore'', ''companies'',''jobs'')","IsVisible":true}]'
where user like '%admin%'
sqlfiddle : http://sqlfiddle.com/#!18/402e8/1
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I have a parameters that contain 6 or more number and can be input with textbox
so for each parameter, put the numbers in a arraylist
like this:
Dim a As New ArrayList
a.Add(Val(B1_Left.Text))
a.Add(Val(B1_Down.Text))
a.Add(Val(B1_Right.Text))
a.Add(Val(BB1_Left.Text))
a.Add(Val(BB1_Down.Text))
a.Add(Val(BB11_Right.Text))
so for each record i have an arraylist parameter that should be insert the row of one column. Which column type should i apply in sql server table to store a vb.net arraylist?
my vb.net code for insert to database:
Dim DBConnection As New SqlConnection(My.Settings.CS)
Dim DBCommand As New SqlCommand
Dim _PID As Integer
Dim _Date As Date
Dim _txt As String
Dim _B1 As ArrayList = a.clone
DBCommand.Connection = DBConnection
DBCommand.CommandText = "insert into TOM_ShaftFix " &
" ( PID, [Date], txt, B1) " &
" VALUES(#PID,#Date,#txt,#B1)"
DBCommand.Parameters.AddWithValue("#pid", _PID)
DBCommand.Parameters.AddWithValue("#Date", _Date)
DBCommand.Parameters.AddWithValue("#txt", _txt)
DBCommand.Parameters.AddWithValue("#B1", _B1)
DBConnection.Open()
DBCommand.ExecuteNonQuery()
DBConnection.Close()
Depending on the version of SQL Server you could store the data as JSON.
In SQL 2016 it is supported natively, alternativelly you could store it as XML.
declare #country nvarchar(max) = '{
"id" : 101,
"name": "United States",
"continent": "North America"
}';
INSERT INTO Countries
SELECT * FROM OPENJSON(#country)
WITH (id int,
name nvarchar(100),
continent nvarchar(100))
MSDN
Depending on the type you could simply store it as comma seperated values.
1,2,3,4,5,6