Oracle sql conditional where clause based on parameter. COMPARE_TYPE <> 'A' AND T1.
Oracle sql conditional where clause based on parameter. from table/view where first condition always and optional second condition based on the value based on the apex variable :P222_VARIABLE_NAME I am getting the value of the parameter at the runtime using a Oct 7, 2015 · I have a plsql procedure which take an input variable. buf 1 with t1 as 2 ( 3 select 1 as seq, 'nothing 1' as some_type from dual union all 4 select 2 as seq, 'nothing 2' as some_type from dual union all 5 select 3 as seq, 'something 1' as some_type from dual union all 6 select 4 as seq, 'something 2' as some_type from dual union all 7 select 5 as seq, 'something 3' as May 19, 2014 · The simplest (though probably not the most efficient) way is to handle the null inside the SQL statement itself, e. tablename is a static property which does not change. Modified 5 years, 6 months ago. The SQL CASE statement specifies a conditional expression to perform different actions depending on the input expression value. This SELECT statement would return all supplier_name and order_id values where there is a matching record in the suppliers and orders tables based on supplier_id, and where the supplier's state is California. 2. Nov 25, 2011 · Let's say you have a stored procedure, and it takes an optional parameter. Jan 26, 2011 · Thank you posting the solution. contactid HAVING COUNT(DISTINCT t. put_line Dec 1, 2021 · I am creating oracle report where if the user inputs true or false, the respective values should go to parameter. [MM] WHERE DateDropped = 0 --This is where i need the conditional clause I have a parameter based on which I need to include or exclude one condition in a where clause. Some approaches I have seen: 1) Use CASE combined with boolean operators: WHERE OrderNumber = CASE WHEN (IsNumeric(@OrderNumber) = 1) THEN CONVERT(INT, @OrderNumber) ELSE -9999 -- Some numeric value that just cannot exist in the column END OR FirstName LIKE CASE WHEN (IsNumeric(@OrderNumber) = 0) THEN '%' + @OrderNumber ELSE '' END Jul 3, 2012 · Parameter rf is a list of variables to be input into the WHERE clause. Sep 5, 2013 · I am creating a SQL query in which I need a conditional where clause. Sep 30, 2016 · I'm interesting that how can I use if-then-else statement or any control structure in where clause in Oracle. here is my situation: I have a bit value that determines what rows to return in a select statement. start_date = p. Sep 5, 2018 · TABLE function and where clause parameters retrieving Hi there,My goal is to return fieldX or fieldY depending on the where clause (which I don't have any control on since it's generated by a third party software). id, a. Then you pass in a 1 for the flags that you want to check and leave the others null. The stored procedure takes three input parameters @FromDate @ToDate @PersonnelNo Mar 23, 2009 · When restricting data based on a parameter I usually use the following: AND p. customer_id = pcustomer_id. Technical questions should be asked in the appropriate category. account_ref_id = v_account_id and v_date = bp. sql> select * from emp t 2 order by 3 case 4 when comm is null 5 then sal 6 else empno 7 end 8 / empno ename job mgr hiredate sal comm deptno ----- ----- ----- ----- ----- ----- ----- ----- 7369 smith clerk 7902 17-dec-80 800 20 7900 james clerk 7698 03-dec-81 950 30 7876 adams clerk 7788 23-may-87 1100 20 7934 miller clerk 7782 23-jan-82 Sep 22, 2011 · The goal with this WHERE clause is to filter the result set on p_DrumNo if it´s passed in to the Stored Procedure. start_date) so IF the parameter is null THEN I just join on itself, ELSE we filter on parameter. I am using Oracle 9i. Oracle introduced the so-called bind peeking with release 9i. How can I do it? No need to use ad-hoc query (execute SP_ExecuteSQL). SQL Query in Oracle where Jul 18, 2016 · Making statements based on opinion; back them up with references or personal experience. This is why when there are lots of parameters (several search fields in a big form for example), I like to use dynamic SQL: Feb 10, 2017 · Now, I am trying to set up another AND clause for ParkID. Oracle PL/SQL does not play nicely with BOOLEAN, but you can use the Jun 21, 2010 · SELECT COALESCE(CurrMonth. The number of variables to be input is not static. start_date = NVL (p_start_date, p. I want to use as: when pcustomer_id IS NULL then WHERE c. If you may try this approach. Bind peeking enables the optimizer to use the actual bind values of the first execution when preparing an execution plan. I need to check a value from a parameter, and depending on it, apply the right clause. Use another data type to run your process. I dont really know what to search for, so I ask here for links or even a word to search for. LatLong, w. You want to use this optional parameter in the SQL query. The problem for Oracle is that the SQL's exec plan has to be optimized for ANY combination of bind parameter values. mgr_id) An workaround query may be: Apr 23, 2018 · Hello guys, I would like to know whether it is possible to use a CASE condition in my WHERE clause using a parameter. status = (CASE WHEN status_flag = STATUS_ACTIVE THEN 'A' WHEN status_flag = STATUS_INACTIVE THEN 'T' ELSE null END) AND t. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Mar 14, 2013 · CASE might help you out: SELECT t. Within an WHERE clause is it possible to select 'No' from the column where the passed parameter value is 'PPNo' and 'Yes' where the passed parameter value is 'PPYes'. As you noticed this can be a very long where-clause. COMPARE_TYPE = 'A' AND T1. This performs efficiently when you have complex SQL with large tables and you want to avoid IN('All') kind of default clauses. Name, YTD. But if query need to be performed based on multiple columns, we could not use IN clause( @Matt I disagree 100%. col1. Here is an example: SQL> CREATE TABLE t (ts TIMESTAMP); Table created. field1, field2, (!) and the contents can change. It was quick and easy to find. I want to use the CASE construct after a WHERE clause to build an expression. Jul 19, 2016 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. 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. While I have worked on other DBMS such as Ingres, MS-SQL, MS-Access, and DB2, I have not worked with Oracle before my current assignment. I can produce a query that is: SELECT * FROM table WHERE: status_id = 3 date = <some date This Oracle WHERE clause example uses the WHERE clause to join multiple tables together in a single SELECT statement. Here we are just wrapping that SELECT statement in COALESCE which, if it returns null, will grab the second parameter's value instead, which is the same column we are comparing. I define "usable" there loosely - needs to cover the query or not introduce lookups that are too costly. Jun 15, 2012 · Using dynamic SQL is the simplest approach from a coding standpoint. Thanks for accepting this as the answer but Tony Andrews solution is a lot more straightforward and, in my view, the better answer. Create Procedure( aSRCHLOGI Feb 10, 2017 · If we need to query a table based on some set of values for a given column, we can simply use the IN clause. Sep 1, 2011 · I need help writing a conditional where clause. ORDER BY Clause Syntax The Oracle BI Server accepts any valid SQL ORDER BY clause syntax Dec 1, 2012 · Oracle SQL : timestamps in where clause. I am trying to make it possible to have [ERROR_FREE] registered as '0', '1' or 'NULL' based on a variable passed from my C# application. Id <> 123) Everything you put in the where clause needs to be in the form of an expression. status FROM employeetable t WHERE t. If your parameters are NULL you're probably doing a full scan anyway. The following illustrates the syntax of the WHERE clause: SELECT select_list FROM table_name WHERE search_condition ORDER BY sort_expression; Code language: SQL (Structured Query Language) (sql) The WHERE clause appears after the FROM clause but before the May 16, 2017 · Never forget that in Oracle SQL the '' literal (empty string) is the same as NULL, hence your predicate e. I am trying to create a stored procedure which will return records based on input. Jul 26, 2020 · Making statements based on opinion; back them up with references or personal experience. ColumnName != null which always evaluates to NULL. ColumnName != '' is equivalent to e. sql> ed wrote file afiedt. I don't know Oracle and I don't know what its "Adaptive Cursor Sharing" does. – You could have a parameter for each possible flag column, then check if the parameter is null or the value in the column is equal to the parameter. If all the input parameters are null, then return the entire table, else use the parameters and return the records Jun 23, 2024 · This article has explored different types of SQL conditional joins, including conditional join based on column value, conditional join if exists, and conditional left join. first_name LIKE firstname If this were to be done using sql queries I would have used string builder to have them appended to the main strSQL query. acocunt_ref_id = v_account_no and bp. 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. I have a form where users can specify various parameters to dig through some data (status, date etc. business_unit = (CASE WHEN source_flag = SOURCE_FUNCTION THEN 'production' WHEN source_flag = SOURCE_USER THEN 'users' ELSE null END) AND t. I used the Once you execute the above SELECT SQL statement, you will get the following result set as per the conditions. So, if on rows where ParkID IS NULL, we want to always keep those rows. contactid FROM YOUR_TABLE t WHERE flag IN ('Volunteer', 'Uploaded') GROUP BY t. If the parameters are not null, and there is a usable index on DateCreated, it will be used. CREATE FUNCTION [dbo]. We are trying to update the salary from Employee table based on their designation and total experience. Learn more about Apr 27, 2017 · In addition to being slightly more readable, this also eliminates four function calls from the statement, making it more efficient. The problem with dynamic SQL, though, is that you have to hard parse every distinct version of the query which not only has the potential of taxing your CPU but has the potential to flood your shared pool with lots of non-sharable SQL statements, pushing out statements you'd like to cache, causing more hard parses and shared Jan 21, 2017 · Making statements based on opinion; back them up with references or personal experience. Or with this trick: Jun 26, 2023 · This SQL tutorial will guide you on conditionally filtering using the WHERE clause using a SQL CASE statement. name, a. account_ref_srce_system_cd = v_nat_srce_system_cd and v_date = bp_data_as_at_dt ) ) Feb 25, 2013 · I've a procedure that takes two parameters, I want to include/exclude a parameter in Where clause based on parameter's length: For example, Procedure: SearchCountry(vName, vContinent) Query: Select * from Country where Name like '%vName%' and Continent like '%vContinent%' Try writing the where clause this way: WHERE (T2. description FROM Table1 a WHERE (IF x = 'Y' THEN a. start_date ELSE May 20, 2016 · Hello Just a thought for this we can use Dynamic sql too. So if all 4 parameters is null I would show the entire table. COMPARE_TYPE <> 'A' AND T1. If @ParkID = 22, then return both rows. 0. If my variable is A then I need to query a specific where clause, if it is B it uses that specific where clause and same goes for C. The WHERE clause then continues with further conditions but this specific one halts the query. Introduction to SQL CASE Statement. COL3 = TB2. Problematic sample query is as follows: select case when char_length('19480821') = 8 then select count(1) from Patient when char_length('19480821')=10 then select count(1) from Doctor end Jan 11, 2017 · A use case has come up to pass blank values into the function for any of the IN parameters and have it select ANY value in the where clause where the parameter is blank. I want to get values based on the parameters, but if a parameter is NULL then that parameter isn't checked. Jan 12, 2012 · If SESSION_START_DATE_TIME is of type TIMESTAMP you may want to try using the SQL function TO_TIMESTAMP. If the date column isn't indexed or a partition key then you could just put trunc() around everything; if it is then it might be worth constructing a between expression. com. length), I want to execute different SQL statement. But the predicate I wrote is definitely sargable. ). It has to be optimized before Oracle even sees bind variables. Here is the sample query. So they have the somewhat unnatural concept of "condition" which is something that goes into logical conditions (like in the WHERE clause). from table/view where first condition always and optional second condition based on the value based on the apex variable :P222_VARIABLE_NAME I am getting the value of the parameter at the runtime using a @Rene The order of conditions does not matter at all. – Feb 25, 2013 · since you'll be full scanning - and you'll of course be using bind variables, you can simply code: select * from country where name like plsql_variable_name and (continent like plsql_variable_continent or plsql_variable_continent is NULL) Sep 8, 2014 · Try the conditional update, Update with Case for conditions. That expression should be morphotropic(;)) So, assuming stardard oracle's employee schema, managers are: select * from emp e where exists (select emp_id from emp where e. The column in the sql table I'm wanting to select contains Yes/No values. The syntax for the CASE statement in a SQL database is: SQL Basics; SQL Practice Set; Recommended articles: SQL Basics Cheat Sheet; What Is the SQL WHERE Clause? The Complete Guide to the SQL WHERE Clause; Enumerate and Explain All the Basic Elements of an SQL Query ; How to Write a WHERE Clause in SQL; Using AND, OR, and NOT Operators in SQL; See also: How to Order Alphabetically in SQL The problem is that Oracle SQL does not have the boolean data type, so you cannot have columns of type boolean, pass boolean parameters to a query, have boolean expressions etc. May 6, 2024 · This post is a continuation of SQL Offset-Fetch Clause Now, we understand that how to use the Fetch Clause in Oracle Database, along with the Specified Offset and we also understand that Fetch clause is the newly added clause in the Oracle Database 12c or it is the new feature added in the Oracle database 12c. As others have noted, you should use dynamic SQL sparingly and in situations where no other method is suitable. Name) AS Name, CurrMonth. Ask Question Asked 12 years, 10 months ago. [dbo]. Feb 3, 2015 · Say I have a sample table: id_pk value ----- 1 a 2 b 3 c And I have a sample PL/SQL block, which has a query that currently selects a single row into an array: Jan 30, 2013 · Now, order by clause use an expression and order rows upon it. In this case, the best way is to probably just union two exclusive queries: May 1, 2013 · I am passing a parameter from a dropdownlist listitem value assigned 'PPNo'. v_name, v_country, v_type. For 4 possible columns on search criteria it is still possible to have 2^4-1 possible SQL texts to use. . Second problem is that you are trying output a boolean value from your CASE. ) Jan 19, 2012 · Even if it's possible, it's not a good idea. Check below logic, you can use N number of dynamic / un-sure parameters / conditions-- flages declare @chk_vendor bit; declare @chk_entity bit; -- setting off set @chk_entity = 0; set @chk_vendor = 0; if @Vendor_Name is not null begin set @chk_vendor = 1; end else if @Entity is not null begin set @chk_entity = 1; end SELECT * FROM table_name May 29, 2014 · I have plsql procedure which accepts certain parameters e. If the CustomerType parameter is blank, then I need to include a condition CustomerType is null, oth Jun 7, 2016 · As far as I know, latest version of SQL Server still has a feature called "parameter sniffing" and execution plan caching, which is usually useful, but for this kind of queries is often harmful. ELSE or Case statement ,I think By this way two execution plan would be make and would be cached , I had such a question, please take a look at it for getting started . The TABLE() function is very close to what I want to achieve : select * from TABLE(customFunction()) where param1=XXX AND param2 Sep 18, 2008 · There isn't a good way to do this in SQL. first_name, t. employid, t. sample_column1, **SOME LOGIC**); Aug 8, 2013 · Here is another using just the WHERE Clause: SELECT * FROM Table A WHERE (@Checkbool = 1 AND A. ex: select * from table WHERE 1 = CASE WHEN channel = 1 AND REGEXP_LIKE The WHERE clause specifies a search condition for rows returned by the SELECT statement. I have tried some queries but they do not work. : 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. Total AS YearToDate FROM ( SELECT Name, COUNT(Column1) AS Total FROM Table1 WHERE Occurred_Date BETWEEN '2010-06-01' AND '2010-06-30' --Total GROUP BY Name ) AS CurrMonth FULL OUTER JOIN ( SELECT Name, COUNT(Column1) AS Total FROM Table1 WHERE Occurred_Date BETWEEN '2010-01-01' AND '2010-06-30' --YearToDate GROUP Nov 18, 2015 · (It gets slightly more complicated if the date column and parameter can contain times. flag) = 2 Oracle BI Server computes the results based on the level specified in the GROUP BY clause. Aug 20, 2024 · Understanding the CASE Statement. Apr 17, 2012 · using OR and Dynamic sql Query lead us to performance hit, It seems the best bet is using IF . Jul 29, 2011 · need to put a condition in my sql where clause such that if the value is null, then it should be ignored from the condition. last_name, t. SOME_TYPE NOT LIKE 'NOTHING%') Share I'm attempting to use the IFELSE construct in my WHERE clause to selectively apply conditions to my SELECT. This variable (my_plsql_var) I need to decide the where clause of my select statement. id = user_id INTO u_access_level; -- Result for simple users IF u Aug 17, 2016 · Conditional Where clause with decode Hello there,Good Day!I have a query at hand:SELECT mf_trn_id FROM mf_transactions WHERE MF_TRN_AGENT_CD = :b1 AND MF_TRN_PAN_NO = :b2 AND MF_TRN_SCH_CD = :b3 AND MF_TRN_COMP_CD = :b4 AND MF_TRN_CD = :b5 AND MF_TRN_FOLIO = Decode(:b5, 'P', mf_trn_folio, :b7) Apr 23, 2017 · My initial thoughts were some kind of 'if' branch within the statement, but it doesn't appear to allow this kind of syntax. Now consider the below example: Suppos. Apr 24, 2007 · You would just use a where clause for this: where ( (v_account_id is not null AND bp. Main idea is to generate a sql based on inputs dynamically. In SQL Server 2016 Parameter Sniffing can be controlled at database level. We can use a CASE statement in WHERE clause as: SELECT employee_no, name, department_no FROM emps WHERE (CASE WHEN :p_dept_no = 50 THEN 0 WHEN :p_dept_no = 70 THEN 0 ELSE -1 END) = 0; Dec 7, 2023 · There’s no if keyword in SQL. But, I only want to execute this AND on rows where ParkID IS NOT NULL. Let us understand this with an example. If you want to do if-else-then logic in select, where or anywhere else in a statement, you need a case expression. Dec 23, 2016 · You don't necessarily need dynamic SQL just because certain where conditions don't apply when they are not present. Dynamic SQL can open up the risk of SQL injection attacks, and as noted in "The Curse and Blessings of Dynamic SQL", there are also more subtle gotchas to watch out for. Per-row functions will destroy performance. CREATE OR REPLACE PROCEDURE SPS_TEST_OUT( p_input_in IN VARCHAR2 ) AS lv_sql LONG; lv_where VARCHAR2(100); BEGIN lv_where:= CASE WHEN p_input_in IS NULL OR p_input_in = '' THEN '' ELSE ' AND COLUMN1 LIKE '''||p_input_in||'''%' END; lv_sql:='SELECT * FROM TABLE WHERE 1 = 1 ' ||lv_where; dbms Based on the script in question, it seems that you need the condition for Column1 irrespective of whether the variable @booleanResult is set to true or false. This is a Dec 19, 2012 · Transform a list of strings by using CONNECT BY in order to obtain a conditional IN statement. It should be something like this: SELECT DateAppr, TimeAppr, TAT, LaserLTR, Permit, LtrPrinter, JobName, JobNumber, JobDesc, ActQty, (ActQty-LtrPrinted) AS L, (ActQty-QtyInserted) AS M, ((ActQty-LtrPrinted)-(ActQty-QtyInserted)) AS N FROM [test]. On rows where ParkID IS NOT NULL, we only want to keep those rows if ParkID matches the parameter. Nov 6, 2015 · I have a problem with building a conditional update statement in Oracle. id=emp. g. Here is what I have tried Table a contains a_id primary key a_role varchar2(10) SELE Nov 19, 2017 · I've added another parameter, a drop-down list ("InventoryDropDownList"), but I can't figure out how to work this into my select statement. vehiclenumber, w. I have also modified your CASE from early in the statement to equivalent conditions that use less function calls, are (arguably) easier to read, and that more clearly parallel your field aliases. You select only the records where the case statement results in a 1. Hope it helps. sample_column1 =NVL(t. The CASE statement in SQL is a conditional statement that allows us to specify conditions and return different values based on whether those conditions are met. to update data based on some conditions. for example. Should this work? CREATE OR REPLACE package body If_Else_Pack IS PROCEDURE Moving ( obj_A IN varchar2, obj_B IN varchar2, obj_C IN varchar2, obj_D IN varchar2, cur_Result OUT T_CURSOR ) IS BEGIN OPEN cur_Result FOR SELECT w. Oracle PL/SQL: Conditional Where Clause. Moreover, we have discussed the differences between applying conditions in the JOIN clause and the WHERE clause and the usage of both. Thus, the solution in this case is to write the condition in the form of an expression. start_date ELSE Can someone guide me on how to approach the following: x CHAR:= 'Y'; --VARIABLE SELECT a. It will sometimes produce a plan with a UNION ALL but if there are more than a couple of nvl, you will get full scan even if perfectly valid indexes are present. Sep 25, 2014 · you can have case construct in the order by clause :. customer_id IS NULL; and when pcustomer_id IS NOT NULL then c. Sql conditional statement on where clause. Making statements based on opinion; back them Feb 16, 2011 · The optimizer doesn't understand correctly this type of clause. Since TB2. Basically, ("InventoryDropDownList") has two list items right now, but could grow, based upon the list selection, I'd like the search-box to related to a different column. SELECT C_FirstName, C_LastName, C_UserName, C_UserID FROM CUSTOMER WHERE (FirstN IS NULL OR C_FirstName LIKE FirstN) AND (LastN IS NULL OR C_LastName LIKE LastN) AND (CUserName IS NULL OR C_UserName LIKE CUserName) AND (CID IS NULL OR C_UserID LIKE CID) Dec 12, 2009 · Creating dynamic SQL need little trick and multiple steps. Oct 4, 2017 · How to have conditional where clause based on parameter value. So I need an option to build up a SQL statement in PL/SQL within a recursive function. Jul 25, 2013 · I have a stored procedure that fetches info from a table based on 4 parameters. For example, I have a query which takes the ID of the organisation as parameter: Oct 20, 2016 · It is not an assignment but a relational operator. create or replace procedure test_pl(rf in varchar2) IS counter number; BEGIN select count(*) into counter from test_pl_imp where column_name in (rf); dbms_output. assetid, w. In addition, we can use this approach across all three SQL dialects, including MySQL, SQL Server, and PostgreSQL. For understandability, I'll simplify the problem and basically my update statement should look like this: UPDATE SAMPLE_TAB1 t SET t. Typically this is how I've seen it done: SELECT * FROM dbo. I wish to have a cursor with a select statement like this: select column from table1 t1, table2 t2 where t1 Oct 25, 2017 · I'm trying to avoid dynamic sql. So, I have added that condition to the WHERE clause and in the remaining condition checks whether the variable is set to 1 (true) or if it is set to 0 (false) then it will also check for the condition on Column2. ORDERDELIVERY is just a ~temporary table containing ORDER_IDs related to the parameter p_DrumNo. Apr 23, 2013 · The most efficient way according to my own testing is: *Remark: only valid for NON-NULLABLE columns, as commented by Aaron. Total AS Total, YTD. CurrentSpeed, w Use: SELECT t. But here in Linq I can only think of using an IF condition where I will write the same query thrice, with each IF block having an additional condition. Id = 123) OR (@Checkbool = 0 AND A. Conditional WHERE based on SQL Server parameter value. New requirement involves greater than or equal to, so I tried this: AND CASE WHEN (p_start_date = NULL) THEN p. 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. This solution is usefull if you have serveral conditionals since you can write the IN clause as a single expression without any other AND, OR restrictions. Jul 15, 2009 · How can I select records from a table , say emp, when I have a parameter for where condition like if empno is known then use in where clause, if ename is known then use ename in where clause, if both are known then use both parameters in where clause. e. Ask Question Asked 7 years, 1 month ago. If user selects any parameter(s) then only the 'WHERE' be active else it will be inactive. SOME_TYPE LIKE 'NOTHING%') OR (T2. For an in-depth explanation and some examples of using the GROUP BY clause in requests against the Oracle BI Server, see Rules for Queries with Aggregate Functions. Here is my current WHERE clause. – Jan 17, 2020 · Hello Tom Is it possible to change the where condition (using case statement) based on certain variable? For example var T varchar2(1) exec :T := 'E'; var E number; exec :E := 7788; var N varchar2(20) exec :N := 'MILLER'; select empno, ename from emp where -- how to use case statement to vary the condition based on :T -- if :T = 'E' then the condition should be where empno = :E -- and if :T Jul 2, 2010 · Based on my condition,(for eg. Jun 22, 2009 · It's the canonical reference for dynamic SQL. data_as_at_dt ) OR (v_account_id is null and bp. Mar 23, 2009 · When restricting data based on a parameter I usually use the following: AND p. A note to SSRS report developers with Oracle datasource: You can use BOOLEAN parameters, but be careful how you implement. COL3 is obviously TRUE then this filter will not have any impact on the result set. Allowing the optimizer to re-evaluate each statement in the procedure at runtime will provide a much better chance of exploiting the right index when The answer to this question simply put is: Don't use BOOLEAN with Oracle-- PL/SQL is dumb and it doesn't work. if user inputs All, then both true and false should go to parameters. No, Oracle can't use boolean expressions as results from functions. The result of the case statement is either 1 or 0. An example is if IN_1_id is passed a blank value, the where clause in the first select statement would show where ANY value (even null) is in the opt. Jul 12, 2012 · I want a different set where condition to be executed on a query based on a bind variable in Oracle sql . Apr 2, 2020 · Case construct with WHERE clause Hi Tom, I have a question and I don't know if this is possible or if i'm jsut doing something wrong because i get multiple errors like missing right paren, or missing keyword. Conditional WHERE clause. [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, 2011 · need to put a condition in my sql where clause such that if the value is null, then it should be ignored from the condition. Should this work? CREATE OR REPLACE package body If_Else_Pack IS PROCEDURE Movi 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. There are two main forms of the CASE statement: Simple CASE: Compares an expression to a set of simple expressions to determine the result. Hope this helps. Oracle SQL: Syntax for WHERE clause with one date between two others. Jan 24, 2013 · To supplement the rest of the answers here, which deal primarily with NULL values and COALESCE/NVL/NVL2: SELECT * FROM TheTable WHERE field1 = CASE field2 WHEN 0 THEN 'abc' WHEN 1 THEN 'def' ELSE '' END I'm attempting to use the IFELSE construct in my WHERE clause to selectively apply conditions to my SELECT. This is my SP (as you can see, this only works for 1 parameter atm): Nov 16, 2021 · I have a stored procedure which accepts 3 parameters, can anyone advise what's the most efficient way to conditionally add to the where clause if a parameter is not null? currently I have: where ([LoggedIn] >= @dateFrom and [LoggedIn] <= @dateTo) I would like to add to this if the parameter @email is not null, so conditionally doing the following The Oracle database uses a shared execution plan cache (“SQL area”) and is fully exposed to the problem described in this section. Ex: select . This is a series of when clauses that the database runs in order: For example, if you want to map exam correct percentages to grade letters according to these rules: Mar 23, 2009 · When restricting data based on a parameter I usually use the following: AND p. Where clause with UPDATE Statement in Oracle: It is also possible in Oracle to use the WHERE conditional clause in the UPDATE SQL Statement i. Apr 18, 2012 · If you don't do this, the SQL statements inside your stored procedure will always use the same access plan, regardless of which input parameters are passed into the stored procedure at runtime. name = parameter /*FILTER BY NAME*/ Jun 28, 2011 · How to have conditional where clause based on parameter value Hot Network Questions A kind of "weak reference" which keeps the object alive, as long as there is otherwise-unused memory Aug 4, 2024 · We can use the CASE statement to perform conditional logic within a WHERE clause.