Sql server conditional where clause. TSQL : conditional query.

Sql server conditional where clause. See full list on mssqltips.

Sql server conditional where clause Oct 13, 2016 · SQL Server conditional where clause. You just need to create a user defined table type first. Unless a statement block is used, the IF or ELSE condition can affect the performance of only one Transact-SQL Jun 28, 2011 · Conditional SQL Select statement. For example: ALTER TABLE [dbo]. [setAsMoodle] ON [dbo]. ID= sc. SQL if else with conditional query. ParkID FROM tblc c JOIN tblsc ON c. 18. B = t2. Using case in PL/SQL. Given below is the script. Apr 21, 2014 · I need to match some gender specific data in a SQL query and am having some difficulty in getting the where clause logic correct. He said that if he passes any filter value to the query / procedure, it should consider that filter otherwise query… Oct 17, 2021 · @KVPrashant: that statement isn't entirely correct - SQL Server DOES NOT do boolean evaluation strictly as the statement is written; it is quite possible the LIKE will be evaluated first. Model. Or with this trick: For example, if the query processor can bind to (access) the tables or views defined in the FROM clause, these objects and their columns are made available to all subsequent steps. id WHERE a. id=@employeeid) I know how to achieve this through dynamic SQL but I need a static SQL statement to achieve this. Id <> 123) Everything you put in the where clause needs to be in the form of an expression. [CUS_LmsSection_LmsProxy] (LMSSectionID, LMSProxyID, LMSSectionCtxDN) select SectionID , 'DEE76E47-25E6-459B-9D38-1BCAFA44077A', ContextDN from inserted WHERE 'ContextDN Mar 30, 2017 · Some more information concerning DateTime datatypes and SQL Server queries can be found here: The 'where' clause in this solution is not SARG-able, so indexes won May 19, 2014 · The simplest (though probably not the most efficient) way is to handle the null inside the SQL statement itself, e. Nto sure which RDBMS you are using, but if it is SQL Server you could look at rather using a CASE statement. Price , p. [DateRange] ( @StartDate date, @EndDate date, @Location varchar(25), @Device varchar(25) ) RETURNS TABLE AS RETURN ( SELECT * FROM MyTable WHERE Date < @EndDate AND Date > @StartDate AND Location = CASE WHEN @Location IS NULL THEN Location ELSE Jul 29, 2010 · I have an application on a SQL Server 2008 database. table_a as a INNER JOIN dbo. CREATE FUNCTION [dbo]. Highly recommend reading The Curse and Blessings of Dynamic SQL before considering dynamic SQL on SQL Server Jun 7, 2016 · Aside from figuring out my particular problem, my main question is: does SQL Server support conditional WHERE clause statements (I am convinced it does not from my research)? Why is this (architectural, time complexity, space complexity issues)? Jul 1, 2016 · I'm trying to use a case when clause in a where statement to return values if they fall into 2 different categories. the WHERE clause? For example-- Condition in JOIN SELECT * FROM dbo. SQL Server WHERE clause based on conditions. TSQL Dynamic Query. SQL Server : IF statement in WHERE clause. However, how could I make the below example multi-value parameter i. table_b as b ON a. Applying conditional WHERE clause without using a Dynamic Apr 15, 2014 · Two options: dynamic SQL, or a UNION ALL statement. Hot Network Questions Are PA and Counting Theory synonymous\bi-interpretable? Why is bash startup executed under non-interactive I'm using SQL Server 2016. Check it out a solution below. Dec 7, 2023 · There are a few differences between case in PL/SQL and Oracle SQL. Here is my problem, my where clause looks like this: Jun 18, 2013 · SQL conditional where statement. ID WHERE (stuff = stuff) Sep 15, 2008 · The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server. Also, you can use case; you just have to put the case in where clause, not the where clause in the case. Hot Network SQL Conditional Select: Select nulls OR select non-nulls. Otherwise, there will be no OR clause if type not equal to 'T': select customerid, type from customer where cityid = '20' if type is equal to 'T' select customerid, type from customer where cityid = '20' OR cityid = '5' In SQL Server, the CASE statement in the WHERE clause is a powerful tool that allows you to apply conditional logic to filter rows based on specified conditions. [test]. SELECT Id, col1, col2, FROM myTable WHERE condition1 = IIF(col1 IS NULL, col1, @Param1) AND condition2 = IIF(col2 IS NULL, col2, @Param2) IIF in WHERE clause. The stored procedure takes three input parameters @FromDate @ToDate @PersonnelNo In order to do dynamic SQL, I'll have to stuff the entire query into a string, concatenate the @flag param in the WHERE clause and then exec the string. That way if the "conditional check" is true than the second half of the OR clause isn't evaluated. Also more or less your dynamic sql is ok. Something l Jul 23, 2014 · The sargable, dynamic version (SQL Server 2005+): Love or hate it, dynamic SQL lets you write the query once. Apr 9, 2013 · Conditional WHERE clause. CustomerID = ORD. His requirement was quiet simple. These parameters are used to query a list of customers. Jul 2, 2017 · You could change that WHERE clause to. Dec 11, 2020 · If both parameters have a value, then my where clause will need to include: WHERE CAST(CreatedDate AS date) BETWEEN @StartDate AND @EndDate If @EndDate is null, then it should be: WHERE CAST(CreatedDate AS date) = @StartDate If both or null then the date should not be a part of the WHERE clause at all. Syntax. how can put if condition in where clause. CASE statement inside a WHERE clause in SQL Server. Conditional WHERE in SQL clause. The IIF statement is only available in SQL Server 2012 and up, you can replace it with a case statement. May 22, 2021 · My question is, if there is any performance impact writing the query with CASE statement in WHERE condition (example #1) compared to query with simple conditions (example #2). id=@leadid) If @employeeid> 0 then introduce this condition in where clause (e. e. starttime >= b. Let's make it more intuitive by splitting the two apart: WITH CTE1 AS ( SELECT * FROM MemberTable WHERE BranchNumber = '01' AND MemberStatus = 'Active' ) , CTE2 AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY UserID ORDER BY [MemberDate] DESC) AS RowNumber FROM CTE1 ) SELECT * FROM CTE2 WHERE RowNumber = 1 Aug 28, 2013 · A CASE statement is different from a CASE operator; the two are distinguishable by: which grammatical contexts they occur in (roughly, the statement in procedures, the operator in queries), by what's allowed in the branches (roughly, the statement allows queries , the operator allows expressions), and; the statement ends with END CASE. Jan 21, 2017 · I have a SQL Server query that filters some data using: and datepart(mm,cs. First, I have a local variable @gender. Feb 15, 2019 · Is it possible to optimize the following parts of the stored procedure regarding the WHERE clause without using dynamic SQL? The only difference between the two alternatives is that if Admin = 1 then there shouldn't be any WHERE clause, otherwise it should be there. And for a single update the position [0] is wrong, it should be [1]. Aug 10, 2010 · SQL Server conditional where clause. USE ICS_NET; GO CREATE TRIGGER [dbo]. This stored procedure takes in three parameters. Conditional WHERE clause. this code is NOT SAFE . WHERE v. Conversely, because the SELECT clause is step 8, any column aliases or derived columns defined in that clause cannot be referenced by preceding clauses. ELSE to do conditional where clause. g. For example, we can use it to create IF-THEN-ELSE style queries that can be used to create, modify, or execute calculations based on certain criteria . Nov 25, 2015 · SQL - Conditional WHERE clause. starttime ELSE SELECT 1, 2 FROM dbo. Ask Question Asked 7 years, 2 months ago. There are mechanisms to get around that when necessary. Customers AS CUS INNER JOIN dbo. SenderId ELSE m. id = user_id INTO u_access_level; -- Result for simple users IF u Jun 28, 2012 · There have been issues in the past with SQL Server only compiling the first used branch of a conditional clause (I'm not sure whether that is the case with 2008), so using seperate stored procedures protects you from that, and it's an easy way to organise things. May 3, 2011 · How can i use the where clause in the SQL query in the stored procedure. MFG. conditional where Sql server. If the value is true, I need to return rows where the import_id column is not null, if false, then I want the rows where the import_id column is null. Dec 22, 2013 · The ROW_NUMBER is evaluated after the WHERE. id = b. IS NULL; IS NOT NULL; ANY VALUE (NULL AND NOT NULL) (essentially no WHERE clause) Jun 22, 2018 · for simplicity sake, you can try below sample conditional logic: DECLARE @enddate datetime2(7); SET @enddate = NULL; SELECT @enddate; IF @enddate IS NULL SELECT 1, 2 FROM dbo. Aug 29, 2013 · And what I was looking to achieve (in words) woud be: Create a new column, Conditional_Sum = Sum of ColC for each value in ColA where ColB = 1 and ColC > 0 So, the final result would be (added in RowNum to show how I got the values): Jan 10, 2014 · You can't use the result of a boolean expression as a value in SQL Server, but you could replace it with a logical 1/0, something like this:. The CASE statement evaluates one or more conditions and returns a result based on the first condition that is true. I want to do it in the count statement, not using WHERE; I'm asking about it because I need to count both Managers and Other in the same SELECT (something like Count(Position = Manager), Count(Position = Other)) so WHERE is no use for me in this example. SQL: Conditional Passed Parameter variable within WHERE Clause. [pro_name] @number as int as select top 1 * from [table] where number = @number or @number = 0 order by [table]. Jan 26, 2012 · Using SQL Server, I have a stored procedure which I want to make a string search optional. { sql_statement | statement_block} Any Transact-SQL statement or statement grouping as defined by using a statement block. 3. #MemberInfo') is not null drop table #MemberInfo DEC W3Schools offers free online tutorials, references and exercises in all the major languages of the web. here is my situation: I have a bit value that determines what rows to return in a select statement. 1. A very powerful yet obscure feature in SQL is the ability to have parts of the where clause conditionally execute. B, t2. Oct 8, 2013 · Few days ago, I received a query from one of my blog readers inquiring how to implement a conditional where clause in a SQL Server query / stored procedure. Jun 28, 2013 · In this solution, you can use IIF clause instead of IF. Yes it does stop at the first conclusion, but there's no guarantee the condition on the left is processed before the right. : SELECT * FROM table WHERE col1 = param1 AND (param2 IS NULL OR col2 = param2) This by-passes the clause for all rows if the parameter is null. number desc SQL Server If condition at where clause? 2. starttime and a. WHERE CASE WHEN @a IS NOT NULL AND a = @a THEN 1 ELSE CASE WHEN @b IS NOT NULL AND b = @b THEN 1 ELSE CASE WHEN @c IS NOT NULL AND c = @c THEN 1 END END END = 1 Feb 16, 2014 · but if PublishedDeadline is not empty then WHERE clause should be like. One of the parameters is to look for a flag parameter. CustomerID I have a stored procedure in SQL Server 2000 that performs a search based on parameter values. endtime Feb 25, 2017 · In SQL Server, you can use outer apply for this: SELECT t1. Sep 7, 2017 · Use IF conditional in WHERE clause. Just be aware that sp_executesql caches the query plan, unlike EXEC in SQL Server. Thus, the solution in this case is to write the condition in the form of an expression. It takes three arguments: a Boolean expression that evaluates to true or false, a value to return if the expression is true, and a value to return if the expression is false. Here's a basic structure of a CASE statement in the WHERE Jan 21, 2016 · You can make "conditional" WHERE clauses by pairing them with OR clauses. SQL Nov 16, 2021 · Conditional where clause using non-NULL parameters. If that parameter is left blank, then the SELECT should default to NOT having the WHERE clause at all. The only garuntee you have is that it will run statements in order so: SELECT A FROM B WHERE C SELECT D FROM E WHERE F will run the first line before the second. Aug 2, 2017 · I am creating a SQL Server stored procedure. Third, I strongly discouraging returning a result set from a stored procedure when you can easily write a table-valued function to do the same thing. Sql conditional statement on where clause. ID= p. Most often developers will make duplicate copies of an entire query to facilitate two different variable choices. Feb 25, 2010 · I have a SQL Server 2005 stored procedure that performs a query. id=@jobid) If @leadid> 0 then introduce this condition in where clause (l. It filters the rows that are affected by the SELECT, UPDATE, DELETE, or INSERT operations. Jan 8, 2014 · Conditional WHERE Clauses In A Stored Procedure. Jul 25, 2013 · This will work and easier to understand, at least for me. B IS NULL) ORDER BY (CASE WHEN t1. 0. SQL where if statement. Hot Network Questions Jan 20, 2021 · In my SQL statement if the value of Type is equal to 'T' then I want to add a conditional OR clause as shown below. Jan 21, 2016 · If @jobid> 0 then introduce this condition in where clause (j. Jul 18, 2016 · Conditional WHERE Clauses in SQL Server 2008. Dec 3, 2024 · What is the SQL WHERE Clause? The SQL WHERE clause is used to specify a condition while fetching or modifying data in a database. For one of the parameters passed in, I need a different WHERE clause depending on its value - the problem is that the 3 values would be where MyColumn. IIF (Immediate IF) is a logical function in SQL Server that allows you to conditionally return one value or another based on a specified condition. --This script is compatible with SQL Server 2005 and above. TSQL Optional Where Clause. SQL if statement within WHERE clause. Sep 1, 2011 · I need help writing a conditional where clause. SQL Server conditional where clause. Since there is not point in having two exactly the same answers and I was beaten, here is an alternate solution: alter procedure [dbo]. [dbo]. Checking for null,empty variable in sql server. Sep 10, 2014 · SQL Server will generate an optimized plan for each statement it executes. SQL Server add null in where clause. " Where Case when datepart(dd,getdate()) > 15 then [2 above] else [1 above] End Cure my ignorance. B THEN 1 ELSE 2 END) ) t2; The result set has one row for each row in the first table. Optional 'IS NULL' WHERE clause based on a parameter. I'm trying to figure out how to conditionally filter with a having clause. There is no way you can reduce if block except going my way. Sep 12, 2022 · I’m learning T-SQL and need to know how to use an IF statement to include conditional statements within a stored procedure, function, trigger, or script in Microsoft SQL Server. I have tried a couple of things like: Nov 19, 2010 · Another way to this would be: WHERE IsNull([AlternateID], 0) = Coalesce((@Parameter, [AlternateID], 0) For optimal performance, however, dynamic SQL would be the better choice, since the chance of index seek would be increased. D AND (t1. Feb 7, 2012 · Might be a little overkill, but the following stored procedure can be used to achieve what you want: DROP procedure IF EXISTS `listAccessibleUsers`; DELIMITER $$ CREATE PROCEDURE `listAccessibleUsers`(IN user_id INT) BEGIN DECLARE u_access_level INT; -- Select the user access level SELECT access_level FROM users WHERE users. Creating a dynamic where clause in SQL Server stored procedure. In other words, I need to create a stored procedure that filters for or against different parameters, depending upon varying I have a table where I want to ensure that a combination of five columns remain unique within that table. SQL Server XQuery native out-of-the-box FLWOR expression is a way to do it. This is my code so far: create view dbo. Jun 27, 2002 · All the examples presented in this session uses the AdventureWorks sample database of SQL server 2005 /* EXECUTE ProductSearch1 NULL. Conditional WHERE based on SQL Server parameter value. In PL/SQL you can write a case statement to run one or more actions. Related. This database has a stored procedure that queries one of the tables. Jun 19, 2009 · Is there any difference (performance, best-practice, etc) between putting a condition in the JOIN clause vs. where clause from where clause. D = t2. sp_executesql works just fine with table variables. Nov 17, 2014 · I'm using SQL Server 2008 Express, and I have a stored procedure that do a SELECT from table, based on parameters. the user doesn't have to select just one option but can choose which option (or Aug 2, 2012 · The statements in the Trigger can have WHERE clauses so you would just need to add the WHERE clause to the statement. Creating optional WHERE clause inside of SQL Server stored procedure. If you go my way then No use in trying dynamic sql. Use IF conditional into where clause. . Jan 23, 2018 · Sql Server Conditional And Clause. Sep 5, 2013 · I am creating a SQL query in which I need a conditional where clause. Hot Network Questions Oct 6, 2018 · Your code is RBAR; performing the same subquery 1 at a time, which is very inefficient. Aside from the dirty feeling I get when doing dynamic SQL, my query is fairly large (I'm selecting a couple dozen fields, joining 5 tables, calling a couple of functions), so it's a big giant Dec 11, 2014 · I'm trying to do a conditional AND within a SQL WHERE clause. I'm writing a stored procedure where I would like to pass in a filter (e. It's a simple SELECT query that I am building. C FROM [Table] t1 OUTER APPLY (SELECT TOP 1 t2. A, t2. RecipientId END) = @UserId Because what you put after the THEN in a CASE should just be a value, not a comparison. timestamp) &lt;= @month I have a parameter @accumulate that if true then I want to to above logic but if false then I wa Apr 11, 2017 · IMHO,if it was some other example then dynamic Sql approach was good. So your original query would be: BTW, there's no such thing as a short circuit boolean in SQL Server. [A]) END Apr 23, 2013 · The most efficient way according to my own testing is: *Remark: only valid for NON-NULLABLE columns, as commented by Aaron. Hot Network Questions Will marginal effects for a logit link also be between 0-1? Using telekinesis to minimize the effects of g May 15, 2013 · I would like to write the following IF statement in SQL. Look further up and left of the plan; to the nested loop. B OR t2. Aug 8, 2013 · Here is another using just the WHERE Clause: SELECT * FROM Table A WHERE (@Checkbool = 1 AND A. T-SQL is NOT like a "deterministic" programming language like C# - there's no guarantee for this behavior – You cannot simply put your variable in normal SQL as you have in this line: select * from table_name where @where; You need to use dynamic SQL. It should be something like this: DateAppr, TimeAppr, TAT, LaserLTR, Permit, LtrPrinter, JobName, JobNumber, JobDesc, ActQty, (ActQty-LtrPrinted) AS L, (ActQty-QtyInserted) AS M, ((ActQty-LtrPrinted)-(ActQty-QtyInserted)) AS N. TSQL : conditional query. SELECT * FROM [Table] WHERE [A] = [B] AND IF EXISTS ( SELECT TOP 1 1 FROM [Table2] WHERE 1 = 1 ) BEGIN --Do conditional filter (Table3. EndDate how can i apply conditional where clause in SQL? Please suggest Dec 13, 2020 · Second, the above may not make optimal use of indexes, based on the way that SQL Server caches plans for stored procedures. Apr 17, 2012 · So you might as well end up SQL Server doing all the unnecessary checks. A case expression returns a single value. Hope this helps. Jun 30, 2011 · I need to do a conditional statement in my where clause similar to WHERE IF(@Param = 0) THEN Column1 != 7 I am attempting to allow the user to exclude a set of records based on the value of the @ Mar 8, 2018 · How to use a conditional case in the where clause using different conditional columns? Please refer to the code below if OBJECT_ID('tempdb. Most of the where clause is constructed, but it's the condition around the statement that I'm struggling with: if @StuYear = 11 then AND (@ Jun 27, 2002 · From time to time, I have a need to utilize a conditional WHERE clause. I want to give me a list of all IDs, date, and username that if the date is before 2018 show m Sep 12, 2022 · I’m learning T-SQL and need to know how to use an IF statement to include conditional statements within a stored procedure, function, trigger, or script in Microsoft SQL Server. Oct 4, 2017 · How to have conditional where clause based on parameter value. SQL Server: SELECT IF conditionally. Nov 8, 2014 · SQL Server : Where condition based on the parameters. There are several enhancements to case available in PL/SQL: case statements; Extended case controls (from 23ai) Case statements in PL/SQL. You worry about "sort", but that by itself would not be a problem. com May 22, 2001 · The conditional WHERE clauses are based on the simple principle defined by the query "SELECT something FROM sometable WHERE 1=1" As you can see, all CASE statements evaluate to either 1 or 0, Aug 4, 2024 · We can use the CASE statement to perform conditional logic within a WHERE clause. * FROM t2 WHERE t1. FirstName = 'John' -- Condition in WHERE SELECT * FROM dbo. Hot Network Questions Feb 2, 2012 · SQL Server conditional where clause. ContactID , c. Sep 21, 2015 · In SQL Server, how do you create a conditional where clause that evaluates different equality? WHERE [Date] <= WHERE [Date] = sql server-conditional where clause. [LMS_Section] For Insert As INSERT INTO [dbo]. The condition can range from simple comparisons to complex expressions, enabling precise targeting of the data. eightmonthinc as select * from dbo. Feb 10, 2017 · This query: SELECT sc. The parameters are as follows: @StateID as int, @CountyID as int, @CityID as int. SQL Server conditional query. I am attempting to use a case statement, but am getting stuck maybe the case statement isn't the best way to do this, and if so, any viable alternatives would be appreciated. Conditional from in sql query. How to append an extra AND statement to a WHERE clause based on a condition? Hot Network Questions Marginal effect of poisson Jul 15, 2014 · I am modifying an existing stored procedure in SQL server and trying to come up with a query that should take a conditional WHERE depending on whether one of the input parameters is null or has value. WHERE (CASE WHEN @MessageStatus = 4 THEN m. When I try to combine them in a case statement in the where clause, however, I'm getting errors galore, starting with the first inequality after the "then. [C] = Table. Can we do it like below. [MyTable] ADD CONSTRAINT [UQ__MyTable. Evaluates a list of conditions and returns one of multiple possible result expressions. Class. Where Clause based on condition. ELSE clause to do conditional where clause. SQL server Where Clause variable may be Sep 22, 2016 · Is it possible to specify a condition in Count()?I would like to count only the rows that have, for example, "Manager" in the Position column. Orders AS ORD ON CUS. I want to basically do a "AND" if the parameter value is not null. e. But there are some limitations in IF I would like to know if there's a way to construct a query in which the existence of the actual where clause itself is conditional. Col1=1 or Col2=3 ) and my query looks something like the following: Jan 13, 2018 · Is it possible to have conditional where clause, based on declared variable? Please note: my query is much more complicated than this, I am just using this example to simplify things. but in this example I don't think there will be much performance gain. Conditional SQL Server query. 4. Apr 2, 2010 · Note however: this works pretty efficiently on Sybase 11 or above; it worked pretty inefficiently on MS SQL server 2003; I don't know how it works on the current version of MS SQL Server. startdate <= @PublishedDeadline and @PublishedFrom <= v. Where clause with a conditional condition. SQL - Retrieve records May 22, 2012 · These work independently in the where clause. Mar 9, 2012 · EDIT:. Sometimes more complex conditions are more readable using the CASE statement (nested statements) than building the same conditions using AND+OR. Hot Network Questions Is Nirvana the Source of all life? SQL Server get all the records including null values if the parameter is null. @search is a parameter. A pseudo code example is below. Conditional Where clause: Any way to write Feb 22, 2021 · I know how to create compound conditional filters (see below example) where, depending on the one value in the parameter, the corresponding where statement will be applied (example below). ID LEFT JOIN tblp p ON sc. Conditional where clause using non-NULL parameters. Something like this: SELECT * FROM Product WHERE (@ProductID <= -1 OR ProductID = @ProductID) AND @ProductName = '' OR ProductName = @ProductName) -- etc. Solution The IF statement in T-SQL works very much like the IF statement in most modern programming languages. 2. SELECT CAST( CASE WHEN Obsolete = 'N' or InStock = 'Y' THEN 1 ELSE 0 END AS bit) as Saleable, * FROM Product Sep 16, 2019 · Unfortunately, the replace value of statement only updates one node at a time. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. You don't have to order your where clause to get that benefit. See full list on mssqltips. I have nvarchar parameters and int parameters. The CASE expression has two formats: The simple CASE expression compares an expression to a set of simple expressions to determine the result. [MM] DateDropped = 0. Loading IF ELSE clause is very handy and whenever you need to perform any conditional operation, you can achieve your results using it. Sep 3, 2024 · If the Boolean expression contains a SELECT statement, the SELECT statement must be enclosed in parentheses. This stored procedure takes two parameters: userName and ID The userName Jun 28, 2013 · You can use CASE statement instead of IF. CustomerID AND CUS. Conditionally take value. Just becasue the way table and type are populated. SQL If-Else in the WHERE clause with conditions based on column values. SQL add conditional in WHERE clause. CREATE TYPE IdTable TABLE AS (Id int NOT NULL PRIMARY KEY) GRANT EXECUTE ON TYPE::IdTable TO PUBLIC GO DECLARE @sql NVARCHAR(1000) DECLARE @tableVar IdTable INSERT INTO @tableVar (3) SET @sql = N'Select id from @p1 where ' + @filter EXEC sp_executesql @sql, '@p1 IdTable readonly', @p1 Oct 2, 2013 · sql server-conditional where clause. Id = 123) OR (@Checkbool = 0 AND A. Condition WHERE clauses inside stored procedure. If @search has a value I want to search for the string, otherwise if it is empty it should bypass the search. wfmrbcmd zxtp nde bdnm occ dap alzvso bezaurp lyboh wlnbirx