how to search case sensitive data like user_name and password in ms SQL server.
In MySQl It is done by BINARY() function.
Create column with case sensitive collate, and try this:
Query:
DECLARE #temp TABLE
(
Name VARCHAR(50) COLLATE Latin1_General_CS_AS
)
INSERT INTO #temp (Name)
VALUES
('Ankit Kumar'),
('DevArt'),
('Devart')
SELECT *
FROM #temp
WHERE Name LIKE '%Art'
Output:
DevArt
Or try this similar code -
DECLARE #temp TABLE (Name NVARCHAR(50))
INSERT INTO #temp (Name)
VALUES
('Ankit Kumar'),
('DevArt'),
('Devart')
SELECT *
FROM #temp
WHERE Name LIKE '%Art' COLLATE Latin1_General_CS_AS
Can do this using Casting to Binary
SELECT * FROM UsersTable
WHERE
CAST(Username as varbinary(50)) = CAST(#Username as varbinary(50))
AND CAST(Password as varbinary(50)) = CAST(#Password as varbinary(50))
AND Username = #Username
AND Password = #Password
Related
In SQL Server, how can I get data from a column other than specified data.
For example, I have a column with data "MySQL,Server,Database" in single row.
Now I want to find if there is any other value than MySQL in that column.
I tried by using Not Like but didn't succeed.
For example TableA :
id | Code
---+---------------------------
1 | mysql,sqlserver,database
2 | mysql
3 | sqlserver,database
4 | mysql,mysql
Here, I want to find if the column has data other than "mysql" or not, like id:1 has data other than "mysql" but id:2 have "mysql" but not other than "mysql".
Finally if I want to return the null or blank value if there no any data other than "mysql".
Code I used so far :
select code from tableA where code not like '%mysql%'
It helps if you can provide some data and some code. This works (as far as I understand the question):
CREATE TABLE #x (object_type varchar(50))
INSERT #x (object_type) VALUES ('MySQL'), ('Server'), ('Database')
SELECT * FROM #x WHERE object_type <> 'MySQL'
Base on the updated question, I think you're looking for:
CREATE TABLE #x (id int identity(1, 1), code varchar(50))
INSERT #x (code) VALUES ('mysql,sqlserver,database'), ('mysql'), ('sqlserver,database'), ('mysql,mysql')
SELECT *
FROM #x
WHERE id IN (
SELECT id
FROM #x
CROSS APPLY string_split(code, ',')
WHERE value <> 'mysql'
)
However, as #Eric Brandt asked above, it's not clear whether you want to select row id = 4.
Note STRING_SPLIT is only available for SQL Server 2016 or later. if you are using a earlier version, do a search, there are lots of similar implementation
declare #table table
(
id int identity,
Code varchar(30)
)
insert into #table select 'mysql,sqlserver,database'
insert into #table select 'mysql'
insert into #table select 'sqlserver,database'
insert into #table select 'mysql,mysql'
insert into #table select ''
insert into #table select NULL
select *
from #table t
where t.Code is null
or exists
(
select *
from string_split(t.Code, ',')
where value <> 'mysql'
)
/* RESULT
1 mysql,sqlserver,database
3 sqlserver,database
5
6 NULL
*/
I'm using MSQL 2005. I have 2 table.A and B
Table A
- ID DOVKOD
- 1 KURSATIS
Table B
- ID KURALIS KURSATIS
- 1 2,2522 2,2685
- 2 2,4758 2,4874
Table A has only 1 record
When I execute Select (Select DOVKOD from Table A) from Table B I want to get same result as Select KURSATIS from Table B
I am gonna use it in a view. How can I do that. Thanks..
You can simply use a CASE expression:
SELECT CASE WHEN (SELECT DOVKOD FROM A) = 'KURSATIS' THEN KURSATIS
ELSE KURALIS
END
FROM B
SQL Fiddle Demo here
You must use Dynamic TSQL
SELECT #column=DOVKOD from Table A
EXEC ('Select ' + #column + ' from Table B')
If I understood you right then in table A you have the name of the column that you want to return. Then your solution is bad at all. I'll rather do something like that:
CREATE TABLE #TableA
(
ID INT, DOVKOD VARCHAR(100)
);
INSERT INTO #TableA VALUES (1, 'KURSATIS');
CREATE TABLE #TableB
(
ID INT, Value DECIMAL (18,2),Name VARCHAR(100)
);
INSERT INTO #TableB VALUES (1, 2.2522 , 'KURALIS');
INSERT INTO #TableB VALUES (2, 2.4758 , 'KURSATIS');
SELECT #TableB.* FROM #TableB JOIN #TableA ON #TableA.DOVKOD = #TableB.Name
The only way how to do this in MySQL is using Prepared statements. Dynamic pivot tables (transform rows to columns) is a good article about this.
SET #sql = NULL;
Select DOVKOD INTO #sql
FROM from Table A;
SET #sql = CONCAT('SELECT ', #sql, 'FROM Table B');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
I am writing a store procedure in T-SQL which inserts a row to the table, based on parameters
#UserName ,#CompanyName ,#RestName,#Desc
INSERT INTO Orders(UserId,CompanyId,RestId)
SELECT UserNames.Id,CompanyNames.Id,RestNames.Id FROM UserNames,CompanyNames,RestNames
WHERE
UserNames.Name = #UserName AND
CompanyNames.Name = #CompanyName AND
RestNames.Name = #RestName
Besides the insert to the 3 columns above,I also want to insert the #Desc value.
I tried :
INSERT INTO Orders(UserId,CompanyId,RestId,Desc)
VALUES(
(SELECT UserNames.Id,CompanyNames.Id,RestNames.Id FROM UserNames,CompanyNames,RestNames
WHERE
UserNames.Name = #UserName AND
CompanyNames.Name = #CompanyName AND
RestNames.Name = #RestName),#Desc)
Only one expression can be specified in the select list when the subquery is not introduced with EXISTSt-
It doesn`t work giving the following error:
#UserName ,#CompanyName ,#RestName,#Desc
INSERT INTO Orders(UserId,CompanyId,RestId, Desc_Column)
SELECT UserNames.Id,CompanyNames.Id,RestNames.Id , #Desc --<-- Just SELECT that variable
FROM UserNames,CompanyNames,RestNames -- in your select statement.
WHERE UserNames.Name = #UserName
AND CompanyNames.Name = #CompanyName
AND RestNames.Name = #RestName
Retrieve ID Values Inserted
DECLARE #t TABLE (ID INT); --<-- Declare a table variable
INSERT INTO Orders(UserId,CompanyId,RestId, Desc_Column)
OUTPUT Inserted.ID INTO #t --<-- use OUTPUT, get values from INSERTED Table
SELECT UserNames.Id,CompanyNames.Id,RestNames.Id , #Desc --and insert them into your table variable
FROM UserNames,CompanyNames,RestNames
WHERE UserNames.Name = #UserName
AND CompanyNames.Name = #CompanyName
AND RestNames.Name = #RestName
/*At last just simply select from that table variable to get the inserted IDs*/
SELECT * FROM #t
I am preparing a new database server, where I will migrate data from a big, existing, multilingual database (mostly english/french/spanish text, rarely special characters from other languages for e.g. city names).
My question is: should it be accent sensitive?
Users would be happy if the search made no difference between cafe and café.
But as a DBA, I am worried: I have never seen a database not suffering from bad characters conversions at least once in a while. If I choose accent insensitive, how will I query the database and ask "give me all books where the title contains a special characters"?
If I have a way to do this, I would happily go for accent insensitive.
It should depend on your general usage.
This doesn't preclude you changing it for a specific query
eg
declare #t1 table (word nvarchar(50) collate Latin1_General_CI_AI)
declare #t2 table (word nvarchar(50) collate Latin1_General_CI_AS)
insert #t1 values ('cafe'),('restaurant'), ('café')
insert #t2 select * from #t1
select * from #t1 where word like 'cafe'
select * from #t1 where word like 'cafe' collate Latin1_General_CI_AS
select * from #t1 where word like 'café'
select * from #t1 where word like 'café' collate Latin1_General_CI_AS
select * from #t2 where word like 'cafe'
select * from #t2 where word like 'cafe' collate Latin1_General_CI_AI
select * from #t2 where word like 'café'
select * from #t2 where word like 'café' collate Latin1_General_CI_AI
You can change collation at select time:
with t as (
select 'ali' as w union
select 'àli' as w
)
select *
into #t
from t;
select * from #t
where w collate Latin1_General_CS_AS_KS_WS like '%à%'
w
---
àli
select * from #t
where w collate Traditional_Spanish_ci_ai like '%à%'
w
---
ali
àli
I need to surround the following sql script with an if statment that checks the existence of one table. There's a lot more fields to the statement but the snippet below should be enough to get the idea.
If I surround this whole batch with an if statement it doesn't like that i have GOs between if statments. If i take out the GOs it complains about TMP_FIELD being an invalid column.
What are some ways to do this the right way? All i'm doing is taking a bunch of fields and changing from varchar to datetime. This is part of a setup.exe file so I just need it to run once and not for future upgrades. The way I determine that is if a certain table exists then don't run the script.
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'MY_TABLE') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
ALTER TABLE MY_TABLE ADD TMP_FIELD datetime
GO
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'MY_TABLE') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
UPDATE MY_TABLE SET TMP_FIELD = modifiedDate
GO
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'MY_TABLE') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
ALTER TABLE MY_TABLE DROP COLUMN modifiedDate
GO
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'MY_TABLE') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
ALTER TABLE MY_TABLE ADD modifiedDate datetime
GO
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'MY_TABLE') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
UPDATE MY_TABLE SET modifiedDate = TMP_FIELD
GO
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'MY_TABLE') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
ALTER TABLE MY_TABLE DROP COLUMN TMP_FIELD
GO
You don't really need to do all that gymnastic for changing the type of a column, do you?
create table MY_TABLE (
modifiedDate varchar(20)
)
go
insert MY_TABLE (modifiedDate) values ('2012-10-20 17:50:41')
go
select * from MY_TABLE
go
alter table MY_TABLE alter column modifiedDate datetime
go
select * from MY_TABLE
go
drop table MY_TABLE
go
So, I would write your statement like this:
if exists (select table_name from INFORMATION_SCHEMA.TABLES where TABLE_NAME = 'MY_TABLE')
begin
alter table MY_TABLE alter column modifiedDate datetime
end
The GOs mark the end of a batch of TSQL statements. You can't mix DDL (data definition language) statements like ALTER TABLE with DML (data manipulation language) statements like UPDATE TABLE in the same batch.
Each batch is compiled on it's own. So when the ALTER TABLE and UPDATE TABLE statements are in the same batch, SQL Server can't compile the update statement because the column modifiedData hasn't actually been created yet.
If you want to get around 'Invalid column ..' errors, one option is to use dynamic SQL.
e.g. :
create table dbo.t1 (id int primary key, cola varchar(20))
go
insert dbo.t1 values (1, 'one')
insert dbo.t1 values (2, 'two')
go
if not exists(select * from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = 't1' and COLUMN_NAME = 'colb')
BEGIN
-- add new column 'colb', and set its value initially to existing values in 'cola'
ALTER TABLE dbo.t1 ADD colb varchar(20)
DECLARE #v NVARCHAR(500)
SET #v = N'UPDATE dbo.t1 SET colb = cola'
EXEC (#v) -- use dynamic SQL, otherwise will get Invalid column name colb error.
END
GO
Note that dynamic SQL should be considered a last resort. David Brabant's answer seems to be the way to go for your original problem.