sql if multiple conditions

So, we can still have the strict nature of AND, but we can provide options with OR to make our SQL query a little more robust. In Structured Query Language statements, WHERE clauses limit what rows the given operation will affect. In this case, we have two SQL IF statements. When table ImportHistory has no failure records in column Status, it will run Part I and then insert the record. If you have for example condition "x=1" and condition "x=1 and x=2" then put the second condition first since it should be checked first. The first score, stored in column C, must be equal to or greater than 20. However, the AND says, “Hey, hold up. It can either be 0 or > 0 but never negative. We have already seen, how to use the IF function in basic Excel formulas. Syntax: SQL Else If statement is an extension to the If then Else (which we discussed in the earlier post). It’s time to discover how to implement multiple conditions by using AND and OR in our queries. When count(1) from ImportHistory where [active flag] = 0 and [Status] like '%fail%' > 1 Then (SELECT t1.ImportID, t1.SequenceNumber, t1.PackageName FROM tblImportConfig t1 WHERE (NOT EXISTS (     SELECT * FROM ImportHistory t2     WHERE t1.ImportID = t2.ImportID AND t1.SequenceNumber = t2.SequenceNumber)  AND NOT EXISTS (       SELECT * FROM ImportHistory t2       WHERE t1.ImportID = t2.ImportID AND t2.Status like '%fail%'))) ORDER BY t1.ImportID, t1.SequenceNumber), count(*) from ImportHistory where [active flag] = 0 and [Status] like '%fail%'  and DATEPART(day,Start_Time) =  DATEPART(day, GETDATE())) >= 1Â, Then SELECT t1.ImportID, t1.SequenceNumber, t1.PackageName FROM tblImportConfig t1 WHERE (NOT EXISTS (     SELECT * FROM ImportHistory t2     WHERE t1.ImportID = t2.ImportID AND t1.SequenceNumber = t2.SequenceNumber)  AND NOT EXISTS (       SELECT * FROM ImportHistory t2       WHERE t1.ImportID = t2.ImportID AND t2.Status like '%fail%')) ORDER BY t1.ImportID, t1.SequenceNumberEnd. The SQL CASE Statement. So, once a condition is true, it will stop reading and return the result. The second score, listed in column D, must be equal to or exceed 30. The SQL AND condition and OR condition can be combined to test for multiple conditions in a SELECT, INSERT,... Syntax. [ads]Are parentheses necessary in SQL: In this article will explain the difference between a simple SQL select query using with parentheses and using without parentheses one, and you will notice the different result of each query. So, conditional operators in MYSQL are probably useful for filtering the data and providing exact results based on certain conditions so that it saves our time and effort for fetching information from Database. Can you provide saome sample data and results you expect if this didn't answer your question. In my test, my table has two failed importID and is at the end of the record set. So just dump the outer condition... Permalink Posted 8-Feb-14 0:31am. The conditional selection statements are IF and and CASE.. Loop statements, which run the same statements with a series of different data values.. If the first condition is false or NULL, the second condition in ELSIF is checked and so on. Provide sample schema and data to get better responses and more people can spend time on this productively. In the parentheses, we have 2 conditions separated by an OR statement. You're not restricted to just using one condition, you can test rows of information against multiple conditions. The IF… THEN construct is a part of PL/SQL. These two operators are called as the conjunctive operators. Execution flow will not go to the third if statement as the count of rows in a table can't be negative! If either one of these are true, the condition after the AND statement will return true. The WHERE clause can be simple and use only a single condition (like the one presented in the previous article), or it can be used to include multiple search conditions. One day, my junior asked me one question why I am using parentheses ( brackets ) in most of my SQL query and is it really necessary to use round bracket. The SQL Else If statement is useful to check multiple conditions at once. So, we can still have the strict nature of AND, but we can provide options with OR to make our SQL query a little more robust. Those are IN, LT, GT, =, AND, OR, and CASE. Reason: Before the execution flows to the third if condition, it checks if the first condition is satisfied, if not goes to the second condition and if it doesn't satisfy then it goes to the third condition. A select statement in SQL may contain one or more conditions (also known as predicates) in the where clause. Now every time a record is inserted into ImportHistory it based on the logic it should pick up the correct query.  I've test it and Part I and II work well. Please Sign up or sign in to vote. We might get an unexpected result set without proper use of … If there is another failure it will do the same thing...skip the failed ImportID set and select the next ImportID. But it does not return any values. AND and OR are used in a very large amount of statements, especially user authentication. Using the IF with other functions together, in a complex formula, allows you to test multiple conditions and criteria.In this article, we are going to analyze Excel If function multiple conditions use. The IF() function returns a value if a condition is TRUE, or another value if a condition is FALSE. But for some reason, it does now work as a whole. A standard SELECT is used until we reach the AND. IF Else Statement with multiple IF conditions ???? LT – Less than. This site uses Akismet to reduce spam. Multiple conditions in CASE statement You can evaluate multiple conditions in the CASE statement. Introduction. Learn how your comment data is processed. We would have expected it to returned both records with ‘rustyMeerkat’ as the username. 1. I have something else.” SQL then realizes, we have another condition and checks it. SQL If Else Example 1. Let’s take a look at what I am talking about: SELECT * FROM someTableWHERE column1 = “pickles” AND (column 2 = “possible value 1″ OR column 2 = ” possible value 2″). Multiple conditions, how to give in the SQL WHERE Clause, I have covered in this post. For example, I have a statement like this...Please let me know how I can make this work...the first IF statement work correctly, but the third does not work as I run the whole query...it works well when I run it by itself. 4 PL/SQL Control Statements. If the condition evaluates to False, then T-SQL statements followed by ELSE keyword will be executed. These conditional operators have reduced the use of multiple OR conditions for SELECT, UPDATE, INSERT, or DELETE SQL statements. Please hand-execute this code: But in the real world, we may have to check more than two conditions. PL/SQL supports IF-THEN-ELSIF statement to allow you to execute a sequence of statements based on multiple conditions.The syntax of PL/SQL IF-THEN-ELSIF is as follows:Note that an IF statement can have any number of ELSIF clauses. You will use them with a fair chunk of the SQL you will be writing. What if you need to evaluate multiple conditions? Boolean_expressionBoolean_expression Expression qui renvoie TRUE ou FALSE.Is an expression that returns TRUE or FALSE. Get comfortable with these two commands. USE AdventureWorks2012 GO DECLARE @City AS VARCHAR(50) SELECT BusinessEntityID , FirstName , LastName , City FROM [HumanResources]. This can be done by using ‘and’ or ‘or’ or BOTH in a single statement. Here's how you could have written some of the queries above. To demonstrate this I made a change in the example below so that the AND evaluation results in a false condition. So it is supposed to Run Part III where it will re-try the failed items. As I said earlier in my previous post, count(*) can't be a negative number. But as I insert another Failed record, it is supposed to go to part III and pick up all the records that have failed and return them for insert. IF (Select count(*) from ImportHistory where [active flag] = 0,                                 and DATEPART(day,Start_Time) =  DATEPART(day, GETDATE())) < 1,                 SELECT t1.ImportID, t1.SequenceNumber, t1.PackageName,                 FROM tblImportConfig t1,                 WHERE (NOT EXISTS (,                                                 SELECT * FROM ImportHistory t2,                                                 WHERE t1.ImportID = t2.ImportID,                                                                                 AND t1.SequenceNumber = t2.SequenceNumber)), IF (Select count(*) from ImportHistory where [active flag] = 0 and [Status] like '%fail%' and DATEPART(day,Start_Time) =  DATEPART(day, GETDATE())) >= 1,                                                   SELECT * FROM ImportHistory t2,                                                   WHERE t1.ImportID = t2.ImportID AND t1.SequenceNumber = t2.SequenceNumber),                                 AND NOT EXISTS (,                                                                                   SELECT * FROM ImportHistory t2,                                                                                   WHERE t1.ImportID = t2.ImportID AND t2.Status like '%fail%')),                 ORDER BY t1.ImportID, t1.SequenceNumber, -----here we want to re-run the failed items...but it does not pick up the result set...It works ok by itself, IF (Select count(*) from ImportHistory where DATEPART(day,Start_Time) =  DATEPART(day, GETDATE())) > 0,                                                 WHERE t1.ImportID = t2.ImportID AND t1.SequenceNumber = t2.SequenceNumber)),                 or EXISTS (,                                                                 SELECT * FROM ImportHistory t2,                                                                 WHERE t1.ImportID = t2.ImportID AND t1.SequenceNumber = t2.SequenceNumber,                                                                 AND t2.Status like '%fail%'), IF (Select count(*) from ImportHistory where [active flag] = 0 and [Status] like '%fail%', and DATEPART(day,Start_Time) =  DATEPART(day, GETDATE())) < 1,                                 SELECT * FROM ImportHistory t2,                                                 or EXISTS (,                                                                                 WHERE t1.ImportID = t2.ImportID ),                                                                                 ORDER BY t1.ImportID, t1.SequenceNumber. 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