where-clause

I've taken a look at this answer on how to dynamically create an OrderBy expression in Entity Framework. But I'd like to also build a dynamic Where expression. Something along the lines of this: public IEnumerable<InventoryItem> GetAll(string filterBy, object value) { var results = new List<InventoryItem>(); using (var db = new InventoryDb()) { if (QueryHelper.PropertyExists<InventoryItem>(filterBy)) { var query = db.rri_InventoryItems.WhereByProperty(filterBy, value); foreach(var item in query.Where(expr)) { results.Add(ConvertItem(item)); } } } return results; } Passing in the property to

I have a store procedure which i have planned to use for search and get all values. Scenario: If the parameter passed is NULL it should return all the values of the table and if the parameter passed is not NULL it should return the values according to the condition which is in LIKE. //Query: ALTER procedure [dbo].[usp_GetAllCustomerDetails] ( @Keyword nvarchar(20) = null ) As Begin Select CustomerId,CustomerName,CustomerTypeName,CustomerCode,CategoryName,CustomerMobile,CustomerEmail,CustomerAddress,CustomerCity,CustomerState,Pincode from tblCustomerMaster CM inner join dbo

I want to know if there is a way to use a user-defined variable in WHERE clause, as in this example: SELECT id, location, @id := 10 FROM songs WHERE id = @id This query runs with no errors but doesn't work as expected. Maxym Not far from what Mike E. proposed, but one statement: SELECT id, location FROM songs, ( SELECT @id := 10 ) AS var WHERE id = @id; I used similar queries to emulate window functions in MySQL. E.g. Row sampling - just an example of using variables in the same statement From the MySQL manual page on User Defined Variables : As a general rule, you should never assign a value

I want to execute a parameterized query to perform a search by user-supplied parameters. There are quite a few parameters and not all of them are going to be supplied all the time. How can I make a standard query that specifies all possible parameters, but ignore some of these parameters if the user didn't choose a meaningful parameter value? Here's an imaginary example to illustrate what I'm going for $sql = 'SELECT * FROM people WHERE first_name = :first_name AND last_name = :last_name AND age = :age AND sex = :sex'; $query = $db->prepare($sql); $query->execute(array(':first_name' => 'John',

Let's say I want a JasperReport that lets the user filter on a date if they so wish. The SQL is as follows: select * from foo where bar = $P{bar} and some_date > $P{some.date} Now, I don't want to filter by some date if they didn't pass the date in. I found the following kludge that people use: select * from foo where bar = $P{bar} $P!{some.date.fragment} And the some.date.fragment parameter is defined with the following default: ($P{some.date} == null || $P{some.date}.equals("")) ? "" : "AND some_date >'" + new java.sql.Date($P{some.date}.getTime()).toString() + "'" This is not working as the

Please help me to create a select query which contains 10 'where' clause and the order should be like that: the results should be displayed in order of most keywords(where conditions) matched down to least matched. NOTE: all 10 condition are with "OR". Please help me to create this query. i am using ms-sql server 2005 Like: Select * from employee where empid in (1,2,4,332,434) or empname like 'raj%' or city = 'jodhpur' or salary >5000 In above query all those record which matches maximum conditions should be on top and less matching condition record should be at bottom. SELECT * FROM (SELECT

Im trying to use case to vary the value im checking in a where clause but I'm getting the error: incorrect syntax near the keyword 'CASE' SQL Server 2005 select * from table where ((CASE when adsl_order_id like '95037%' then select '000000'+substring(adsl_order_id,6,6) ELSE select adsl_order_id END) not in (select mwebID from tmp_csv_dawis_bruger0105) Randy Minder Here is one way to include a case statement in a Where clause: SELECT * FROM sometable WHERE 1 = CASE WHEN somecondition THEN 1 WHEN someothercondition THEN 2 ELSE ... END You could try SELECT * FROM table WHERE (SELECT CASE WHEN

I need to use if statement inside where clause in sql. Select * from Customer WHERE (I.IsClose=@ISClose OR @ISClose is NULL) AND (C.FirstName like '%'+@ClientName+'%' or @ClientName is NULL ) AND if (@Value=2) begin (I.RecurringCharge=@Total or @Total is NULL ) end else if(@Value=3) begin (I.RecurringCharge like '%'+cast(@Total as varchar(50))+'%' or @Total is NULL ) end Note:This is not the complete code.Everything is defined in SP.I Just written the code that was needed to understand the issue. Thanks in advance. You have to use CASE Statement/Expression Select * from Customer WHERE (I