How To Add An If Then Else Condition Within An Expression?
Jun 19, 2007
Greetings:
I am creating a complex expression in a Send Mail Task for the MessageSource. The expression contains the values of many package variables. I want to conditionally include some variables in the expression depending on what value they contain.
Is it possible to create conditional logic (if then else) within an expression? I've got to conditionally include 8 different variables.
Hello:Is it possible to use CASE expression in AND condition? i.e.------------------------------------------CREATE PROC spBlah( @id INT, @val INT)ASSELECT * FROM aTableWHERE tableID = @idAND ( CASE @val WHEN 1 THEN otherCol = someValue END CASE @val WHEN 2 THEN otherCol != someOtherVlaue END )-------------------------------------------
In my report I want to use OR condition instead of AND in Table Filter Expression. By default this option is disabled in VS2005 Pro. How do I enable this? or is there any other way to do this? Thanks in advance.
Hi,I am trying to create an update statementon a table with a foreign key to the Userstable (userid).I am getting the error:An expression of non-boolean type specified in a context where acondition is expected, near ')'.Below is the Update statement.UPDATELastLogin SETdate= '2007-08-14 05:34:09.910',status= 1 ,activity = 0WHERE(SELECT ll.status, ll.activity, ll.dateFROM LastLogin ll, Users uWHERE ll.userid = u.useridAND u.email = 'dushkin@hotmail.com')Thanks!
Is it possible to use a IIF IsNothing expression and check another condition? For all the values that are blank, I want it to check another column if "Disposition" = 2 then I want to show "Inactive"
I am getting an error when running this query in SSRS- "an expression of non-boolean type specified in a context where a condition is expected , near ',' " on the following query in the WHERE clause section.
SELECT MG_BL_ITINERARY.ETA_DT, MG_BL_ITINERARY.TO_LOCATION_CD FROM MG_BL_ITINERARY
[code]...
what I need to change in the WHERE clause to rectify this error ?
This is nutty. I never got this error on my local machine. The only lower case m in the sql is by near the variable Ratingsum like in line 59. [SqlException (0x80131904): Incorrect syntax near 'm'.An expression of non-boolean type specified in a context where a condition is expected, near 'type'.] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +925466 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +800118 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +186 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1932 System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) +196 System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) +269 System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +135 view_full_article.btnRating_Click(Object Src, EventArgs E) +565 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746</pre></code> Here is my button click sub in its entirety: 1 Sub btnRating_Click(ByVal Src As Object, ByVal E As EventArgs) 2 'Variable declarations... 3 Dim articleid As Integer 4 articleid = Request.QueryString("aid") 5 Dim strSelectQuery, strInsertQuery As String 6 Dim strCon As String 7 Dim conMyConnection As New System.Data.SqlClient.SqlConnection() 8 Dim cmdMyCommand As New System.Data.SqlClient.SqlCommand() 9 Dim dtrMyDataReader As System.Data.SqlClient.SqlDataReader 10 Dim MyHttpAppObject As System.Web.HttpContext = _ 11 System.Web.HttpContext.Current 12 Dim strRemoteAddress As String 13 Dim intSelectedRating, intCount As Integer 14 Dim Ratingvalues As Decimal 15 Dim Ratingnums As Decimal 16 Dim Stars As Decimal 17 Dim Comments As String 18 Dim active As Boolean = False 19 Me.lblRating.Text = "" 20 'Get the user's ip address and cast its type to string... 21 strRemoteAddress = CStr(MyHttpAppObject.Request.UserHostAddress) 22 'Build the query string. This time check to see if IP address has already rated this ID. 23 strSelectQuery = "SELECT COUNT(*) As RatingCount " 24 strSelectQuery += "FROM tblArticleRating WHERE Itemid=" & articleid 25 strSelectQuery += " AND ip = '" & strRemoteAddress & "'" 26 'Open the connection, and execute the query... 27 strCon = System.Web.Configuration.WebConfigurationManager.ConnectionStrings("sqlConnectionString").ConnectionString 28 conMyConnection.ConnectionString = strCon 29 conMyConnection.Open() 30 cmdMyCommand.Connection = conMyConnection 31 cmdMyCommand.CommandType = System.Data.CommandType.Text 32 cmdMyCommand.CommandText = strSelectQuery 33 intCount = cmdMyCommand.ExecuteScalar() 34 intSelectedRating = Int(Me.rbRating.Text) 35 conMyConnection.Close() 36 'Close the connection to release these resources... 37 38 If intCount = 0 Then 'The user hasn't rated the article 39 'before, so perform the insert... 40 strInsertQuery = "INSERT INTO tblArticleRating (rating, ip, itemID, comment, active) " 41 strInsertQuery += "VALUES (" 42 strInsertQuery += intSelectedRating & ", '" 43 strInsertQuery += strRemoteAddress & "', " 44 strInsertQuery += articleid & ", '" 45 strInsertQuery += comment.Text & "', '" 46 strInsertQuery += active & "'); " 47 cmdMyCommand.CommandText = strInsertQuery 48 conMyConnection.Open() 49 cmdMyCommand.ExecuteNonQuery() 50 conMyConnection.Close() 51 Me.lblRating.Text = "Thanks for your vote!" 52 Comments = comment.Text.ToString 53 54 If Len(Comments) > 0 Then 55 emailadmin(comment.Text, articleid) 56 End If 57 'now update the article db for the two values but first get the correct ratings for the article 58 strSelectQuery = _ 59 "SELECT SUM(rating) As RatingSum, COUNT(*) As RatingCount " 60 strSelectQuery += "FROM tblArticleRating WHERE Itemid=" & articleid 61 conMyConnection.Open() 62 cmdMyCommand.CommandText = strSelectQuery 63 dtrMyDataReader = cmdMyCommand.ExecuteReader() 64 dtrMyDataReader.Read() 65 Ratingvalues = Convert.ToDecimal(dtrMyDataReader("RatingSum").ToString) 66 Ratingnums = Convert.ToDecimal(dtrMyDataReader("RatingCount").ToString) 67 Stars = Ratingvalues / Ratingnums 68 conMyConnection.Close() 69 'Response.Write("Values: " & Ratingvalues) 70 'Response.Write("Votes: " & Ratingnums) 71 72 UpdateRating(articleid, Stars, Ratingnums) 73 Else 'The user has rated the article before, so display a message... 74 Me.lblRating.Text = "You've already rated this article" 75 End If 76 strSelectQuery = _ 77 "SELECT SUM(rating) As RatingSum, COUNT(*) As RatingCount " 78 strSelectQuery += "FROM tblArticleRating WHERE Itemid=" & articleid 79 conMyConnection.Open() 80 cmdMyCommand.CommandText = strSelectQuery 81 dtrMyDataReader = cmdMyCommand.ExecuteReader() 82 dtrMyDataReader.Read() 83 Ratingvalues = Convert.ToDecimal(dtrMyDataReader("RatingSum").ToString) 84 Ratingnums = Convert.ToDecimal(dtrMyDataReader("RatingCount").ToString) 85 Stars = Ratingvalues / Ratingnums 86 If (Ratingnums = 1) And (Stars <= 1) Then 87 lblRatingCount.Text =" (" & (String.Format("{0:f2}", Stars)) & ") / " & dtrMyDataReader("RatingCount") & " Vote" 88 ElseIf (Ratingnums = 1) And (Stars > 1) Then 89 lblRatingCount.Text = " (" & (String.Format("{0:f2}", Stars)) & ") / " & dtrMyDataReader("RatingCount") & " Vote" 90 ElseIf (Ratingnums > 1) And (Stars <= 1) Then 91 lblRatingCount.Text =" (" & (String.Format("{0:f2}", Stars)) & ") / " & dtrMyDataReader("RatingCount") & " Votes" 92 ElseIf (Ratingnums > 1) And (Stars > 1) Then 93 lblRatingCount.Text = " (" & (String.Format("{0:f2}", Stars)) & ") / " & dtrMyDataReader("RatingCount") & " Votes" 94 End If 95 96 'Response.Write(String.Format("{0:f2}", Stars)) 97 'Response.Write("Values: " & Ratingvalues) 98 'Response.Write("Votes: " & Ratingnums) 99 If (Stars > 0) And (Stars <= 0.5) Then 100 Me.Rating.ImageUrl ="./images/rating/05star.gif" 101 ElseIf (Stars > 0.5) And (Stars < 1.0) Then 102 Me.Rating.ImageUrl = "./images/rating/05star.gif" 103 ElseIf (Stars >= 1.0) And (Stars < 1.5) Then 104 Me.Rating.ImageUrl = "./images/rating/1star.gif" 105 ElseIf (Stars >= 1.5) And (Stars < 2.0) Then 106 Me.Rating.ImageUrl = "./images/rating/15star.gif" 107 ElseIf (Stars >= 2.0) And (Stars < 2.5) Then 108 Me.Rating.ImageUrl = "./images/rating/2star.gif" 109 ElseIf (Stars >= 2.5) And (Stars < 3.0) Then 110 Me.Rating.ImageUrl = "./images/rating/25star.gif" 111 ElseIf (Stars >= 3.0) And (Stars < 3.5) Then 112 Me.Rating.ImageUrl = "./images/rating/3star.gif" 113 ElseIf (Stars >= 3.5) And (Stars < 4.0) Then 114 Me.Rating.ImageUrl = "./images/rating/35star.gif" 115 ElseIf (Stars >= 4.0) And (Stars < 4.5) Then 116 Me.Rating.ImageUrl = "./images/rating/4star.gif" 117 ElseIf (Stars >= 4.5) And (Stars < 5.0) Then 118 Me.Rating.ImageUrl = "./images/rating/45star.gif" 119 ElseIf (Stars >= 4.5) And (Stars <= 5.0) Then 120 Me.Rating.ImageUrl = "./images/rating/5star.gif" 121 End If 122 dtrMyDataReader.Close() 123 conMyConnection.Close() 124 End Sub
If you want to reduplicate the error, click over here and try to submit a rating: http://www.link-exchangers.com/view_full_article.aspx?aid=51 Thanks for helping me figure this out.
I'm having a problem... maybe it's very simple, but with soo many work, right now I can't think well...
I need to filter rows in a dataflow...
I created a condition spli to that... maybe there is a better solution...
And the condition is: Datex != NULL(DT_DATE)
(Some DATE != NULL)
[Eliminar Datex NULL [17090]] Error: The expression "Datex != NULL(DT_DATE)" on "output "Case 1" (17123)" evaluated to NULL, but the "component "Eliminar Datex NULL" (17090)" requires a Boolean results. Modify the error row disposition on the output to treat this result as False (Ignore Failure) or to redirect this row to the error output (Redirect Row). The expression results must be Boolean for a Conditional Split. A NULL expression result is an error.
I am trying to write an visibility function to have message shown based on two different IIF conditions:
If behavior is to Add a customer ( if message =NAME ALREADY EXISTS, return " NAME ALREADY EXISTS", otherwize return " NAME CREATED")If behavior is to Delete a customer (( if message =NAME DOES NOT EXIST, return "NAME DOES NOT EXIST", otherwize return "NAME SUCCESSFULLY DELETED") I tried the following which doesn't work: =IIF((UCase(First(Fields!Message.Value, "DataSetName")) = "NAME ALREADY EXISTS"), "WARNING: NAME ALREADY EXIST", "NAME CREATED"), IIF((UCase(First(Fields!Message.Value, "DataSetName")) = " NAME DOES NOT EXIST"), "WARNING: NAME DOES NOT EXIST", " NAME DELETED")
Error 3 Error loading MLS_AZ_PHX.dtsx: The result of the expression ""C:\sql_working_directory\MLS\AZ\Phoenix\Docs\Armls_Schema Updated 020107.xls"" on property "ConnectionString" cannot be written to the property. The expression was evaluated, but cannot be set on the property. c:documents and settingsviewmastermy documentsvisual studio 2005projectsm l sMLS_AZ_PHX.dtsx 1 1
Directly using C:sql_working_directoryMLSAZPhoenixDocsArmls_Schema Updated 020107.xls as connectionString works
However - I'm trying to deploy the package - and trying to use expression: @[User::DIR_WORKING] + "\Docs\Armls_Schema Updated 020107.xls" which causes the same error to occur
(Same error with other Excel source also: Error 5 Error loading MLS_AZ_PHX.dtsx: The result of the expression "@[User::DIR_WORKING] + "\Docs\Armls_SchoolCodesJuly06.xls"" on property "ConnectionString" cannot be written to the property. The expression was evaluated, but cannot be set on the property. c:documents and settingsviewmastermy documentsvisual studio 2005projectsm l sMLS_AZ_PHX.dtsx 1 1 )
I have created 1 report with 2 datasets. This report is attached to the 1st dataset.For example,1st one is "Smallappliances", 2nd is "Largeappliances".
I created a tablix and, the 1st column extracts Total sales per Sales person between 2 dates from 1st dataset (Small appliances). I used running values expression and it works fine.
Now, I would like to add another column that extracts Total sales per sales person between 2 dates from 2nd dataset (Large appliances). I am aware that I need to use Lookup expression and it is giving me the single sales value rather than the total sales values. So, I wanted to use RunningValue expression within lookup table to get total sales for large appliances.
This is the lookup expression that I added for the 2nd column.
I get this error when I preview the report.An error occurred during local report processing.The definition of the report is invalid.An unexpected error occurred in report processing.
I am developing a scientific application (demographic forecasting) and have a situation where I need to update a variety of rows, say the ith, jth and kth row that meets a particular condition, say, x.
I also need to adjust rows, say mth and nth that meet condition , say y.
My current solution is laborious and has to be coded for each condition and has been set up below (If you select this entire piece of code it will create 2 databases, each with a table initialised to change the 2nd,4th,8th and 16th rows, with the first database ignoring the condition and with the second applying the change only to rows with 'type1=1' as the condition.)
This is an adequate solution, but if I want to change the second row meeting a second condition, say 'type1=2', I would need to have another WITH...SELECT...INNER JOIN...UPDATE and I'm sure this would be inefficient.
Would there possibly be a way to introduce a rank by type into the table, something like this added column which increments for each type:
ID Int1 Type1 Ideal Rank by Type
1 1 1 1
2 1 1 2
3 2 1 3
4 3 1 4
5 5 1 5
6 8 2 1
7 13 1 6
8 21 1 7
9 34 1 8
10 55 2 2
11 89 1 9
12 144 1 10
13 233 1 11
14 377 1 12
15 610 1 13
16 987 2 3
17 1597 1 14
18 2584 1 15
19 4181 1 16
20 6765 1 17
The solution would then be a simple update based on an innerjoin reflecting the condition and rank by type...
I hope this posting is clear, albeit long.
Thanks in advance
Greg
PS The code:
USE
master
GO
CREATE DATABASE CertainRowsToChange
GO
USE CertainRowsToChange
GO
CREATE TABLE InitialisedValues
(
InitialisedValuesID int identity(1 ,1) NOT NULL PRIMARY KEY,
da = New Data.SqlClient.SqlDataAdapter("SELECT [Products].[Names], Count([ProductList].[Products]) AS [Total] FROM [Products] LEFT JOIN [ProductList] ON [ProductList].[Names] = [Products].[Names] GROUP BY [Products].[Names] ", strConnection) can we use a where condition in the statement.If so how can we use it.
Hi all,I'm building a DataSet on Visual Studio and don't know how to do a condition (if/else) with SQL... I have a search form, with a DropDownList and have 2 options in it: Search by Title or Search by Author. If the "Title" is selected, then the value is "title and if "Author" is selected, then the value is "author".Here is what I have right now for the DataSet, as seperated queries but I think I can combine them to be one single query 1.This will returns the songs that matches the title:SELECT LYRICS_PK, LYRICS_TITLE, LYRICS_TITLE2, LYRICS_WRITER, LYRICS_WRITER2, LYRICS_COWRITER, LYRICS_DATE_ADDED, UserId_FK, LYRICS_APPROVED, LYRICS_TYPE, LYRICS_VIEWS, LYRICS_ADDED_BYFROM t_lyricsWHERE ((@LYRICS_TITLE IS NULL) OR (LYRICS_TITLE LIKE '%' + @LYRICS_TITLE + '%') OR (LYRICS_TITLE2 LIKE '%' + @LYRICS_TITLE + '%')) AND (@LYRICS_TYPE = 'title') 2. This returns the songs that matches the author: SELECT LYRICS_PK, LYRICS_TITLE, LYRICS_TITLE2, LYRICS_WRITER, LYRICS_WRITER2, LYRICS_COWRITER, LYRICS_DATE_ADDED, UserId_FK, LYRICS_APPROVED, LYRICS_TYPE, LYRICS_VIEWS, LYRICS_ADDED_BY FROM t_lyrics
WHERE ((@LYRICS_AUTHOR IS NULL) OR (LYRICS_AUTHOR LIKE '%' + @LYRICS_AUTHOR + '%') OR (LYRICS_AUTHOR2 LIKE '%' + @LYRICS_AUTHOR + '%')) AND (@LYRICS_TYPE = 'author') This is very inefficient because I have 2 queries, and I need to build 2 ObjectDataSources as well as 2 different GridViews to display the results. I think we can do something likeSELECT .... ... FROM t_lyricsif (@LYRICS_TYPE = 'title') DO THE WHERE CLAUSE THAT RETURNS MATCHES WITH TITLEelse if (@LYRICS_TYPE = 'author') DO THE WHERE CLAUSE THAT RETURNS MATCHES WITH AUTHOR But I don't know how to write that in T-SQL.Any help would be greatly appreciated,Thank you very much,Kenny.
i'm working on a query and have discovered something fairly simple regarding "and" / "or" condition.
if I use e.g.
id_product in ('1111','2222')
as a result i should get all products that match id = 1111 and id = 2222.
But if I do it like
id_product in ('1111') and id_product in ('2222')
as a result i get 0 rows returned, where as i want to find invoices that have both products, and not those which have either product 1111 or 2222 or even both :)
If prmA is something like generic all, any, I want this query return value without condition. Is there a way to do this with sql or I should write stored procedure that checks @prmA and all other condition parameters and generate new SQL statement?
In following query, I use three conditions in WHERE caluse. When I use only CreditUnion.Id=@CreditUnionID Then I get the right value set. But when I join other two conditions , i get all the values instead of relevant data for that parameter.
Can anyone say why it happenes?
Code Block SELECT Member.LastName + ' ' + Member.FirstName AS MemberName, CASE WHEN CuStatus = 'Existing' THEN 'Existing' ELSE 'New' END AS MemberType, EnumCUMembershipStatus.UIText AS Status, CDOrder.DecidedOnCU, SysUserLogon.LastName + ' ' + SysUserLogon.FirstName AS CUDecisionOfficer, 'CD' AS ProductType, CreditUnion.Name
FROM Member INNER JOIN CDOrder ON Member.LastCDOrderFK = CDOrder.Id AND Member.Id = CDOrder.MemberFK INNER JOIN CreditUnion ON Member.CreditUnionFK = CreditUnion.Id INNER JOIN EnumCUMembershipStatus ON Member.CuStatus = EnumCUMembershipStatus.Name INNER JOIN SysUserLogon ON CreditUnion.Id = SysUserLogon.CreditUnionFK
WHERE (CreditUnion.Id = @CreditUnionID) AND (Member.CuStatus = 'Approved') OR (Member.CuStatus = 'Declined')
UNION
SELECT Member_1.LastName + ' ' + Member_1.FirstName AS MemberName, CASE WHEN CuStatus = 'Existing' THEN 'Existing' ELSE 'New' END AS MemberType, EnumCUMembershipStatus_1.UIText AS Status, LoanApplication.DecidedOnCU, SysUserLogon_1.LastName + ' ' + SysUserLogon_1.FirstName AS CUDecisionOfficer, 'Loan' AS ProductType, CreditUnion_1.Name
FROM Member AS Member_1 INNER JOIN LoanApplication ON Member_1.LastLoanApplicationFK = LoanApplication.Id AND Member_1.Id = LoanApplication.MemberFK LEFT OUTER JOIN CreditUnion AS CreditUnion_1 ON Member_1.CreditUnionFK = CreditUnion_1.Id LEFT OUTER JOIN EnumCUMembershipStatus AS EnumCUMembershipStatus_1 ON Member_1.CuStatus = EnumCUMembershipStatus_1.Name LEFT OUTER JOIN SysUserLogon AS SysUserLogon_1 ON LoanApplication.SysUserLogonFK = SysUserLogon_1.Id AND LoanApplication.SysUserLogonCUFK = SysUserLogon_1.Id AND CreditUnion_1.Id = SysUserLogon_1.CreditUnionFK
WHERE (CreditUnion_1.Id = @CreditUnionID) AND Member_1.CuStatus = 'Approved' OR Member_1.CuStatus = 'Declined'
I am an ASP.NET Developer I am using two SQL Server databases, 2005 and sql express.I am using a select statement on an IN CONDITION One table, Table name = SOP10100 resides in a SQL Server 2005 DatabaseThe other table, Table name = ORDER resides on a SQL server express Database I am writing the following sql statement SELECT ORDERNO, CARRIER FROM SOP10100WHERE ORDERNO IN ('ORD000234','ORD000384',....) My question is how many values can I fit on this IN conditionI mean the maximum number of values (upperlimit) Is there a better way to do this Using ASP.NET ?
Hi This is madhavi am working with a project with ASP.NET Using VB.NET.. i have requirement that i have to provide the result based on search condition.... First : For Serach i have to search based on given CITY and CATEGORY....
For this i have written a StoredProcedure like: ****************************************************************************************************************** Create PROCEDURE YellowPages_Search(@city nvarchar(50),@SearchWord nvarchar(200),@Name varchar(50) OUTPUT,@CompanyName varchar(50) OUTPUT,@Address varchar(1000) OUTPUT,@PhoneNo varchar(50) OUTPUT,@MobileNo varchar(50) OUTPUT,@Fax varchar(50) OUTPUT,@Email varchar(50) OUTPUT,@WebSite varchar(50) OUTPUT)AS declare @sql nvarchar(1000)set @sql='select * from YellowPages_Userdetails where city='''+@city + '''and (category like ''%' + @SearchWord + '%'' or subcategory like ''%' + @SearchWord + '%'') ' exec(@sql) GO ************************************************************************************************************************************************************************* Now i want to extend this search condition for LOCATION and SUBCATEGORY means my search condition should include CITY , LOCATION , CATEGORY and SUBCATEGORY (here the location and subcategory may be given or may not be given) so please help me out Thanks in Advance, Madhavi
i have two tables: "Person" and "Year". "Person" can have many "Year" (one to many relation). i want a query which returns all the records from "Person" where "Year" is 2005 but exclude if there is any "Year" with 2004. how can i write that query? any help will be appreciated. i did try <code> SELECT * FROM Person JOIN Year ON Person.Id = Year.PersonID WHERE Year.Year = 2005 AND Year.Year <> 2004 </code> but it doesn't seem to work. i want this query to return records from Person where there is no any year with 2004 but only 2005. If a person has both 2004 and 2005 exclude that person.
i have two tables A and B with the same fields, If the id field of table B equals id field in Table A i need to update th edata for that id row.If the id field doesn;t match then i need to insert a new record in tale A for that id that is i need to perform insertion or updation into table A depending on table B dataCan anyone give me some idea how to start?
I have a sql problem I'm trying to solve. I'm selecting from a table based on a foreign key, and the select returns 2 rows. The table has a column called type, and each row for the foreign key has a different type value. Hopefully the example below can help to explain:
Case 1:
PK | FK | Type | Text -------------------------- 1 | 226 | 0 | some text goes here 2 | 226 | 1 | NULL
Case 2:
PK | FK | Type | Text -------------------------- 3 | 334 | 0 | some text goes here 4 | 334 | 1 | actual text I want to select is in this cell
I'm trying to create a select statement to grab the text for the foreign key I'm looking up. In case 2, I want the text where type=1 but in case 1 I want the text where type=0.
I had started writing it as
select text from table where fk=334 and ( (type=4 and text is not null) or type=0 )
but this returns both rows. What I what is something that I think is more akin to
case a || case b
expression in programming - if case a evaluates as true, use that, otherwise evaluate case b and use if true, otherwise return false.
I hope you can understand what I'm trying to get and any suggestions would be much appreciated.
