An ETL is a software component in data warehouse system. To eliminate the duplicate rows, the database system sorts the combined result set by every column and scans it for the matching rows located next to one another. Can someone help me to do this. In order to use the MINUS operator, the columns in the SELECT clauses must match in number and must have the same or, at least, convertible data type.. We often use the MINUS operator in ETL. I need query 2 to run using each result from query 1 in the where condition. In the original SQL standard, a comparison could have only one … The first query output looks something like this: 2 5 7 8 query is like: select something from somewhere where field = '2'; Then I need to run another query: select something from somewhere else where field = 'result of the last query output'; I can do this with php, but i'm wondering if there's a one shot way to do it through mysql? - Using the result of this query, here we have written another query to identify the students who get better marks than 80. Here is the query : Second query: SELECT a.studentid, a.name, b.total_marks FROM student a, marks b WHERE a.studentid = b.studentid AND b.total_marks >80; Query result: UNION – Use Unions and other set operators to combine rows from one or more queries into one result. Actually, another way of writing my first suggestion would be: What I want to do is take that list of 10 jobs, and use that as input into the following query to get the details of each failed run: Query result: The result of the query is 80. is there any way to do this? The outer query retrieves all rows from the PRODUCT table that have a lower list price than the average list price. To make the result set, the database system performs two queries and subtracts the result set of the first query from the second one. I have a sql query that returns some values and I need to use those values as inputs to another SQL select statement. and how to do it ? Select "Title", "Num" from "Table" where "Id" in ( Select "Id" from "Table2" where "Id" in ( select distinct "Id" from "Table3" where foo-clause ) ) To retain the duplicate rows in the result set, you use the UNION ALL operator. There are many situations in which the results of a query look better when they are rotated. how to do that ? The latest one, An Easier Way of Pivoting Data in SQL Server, inspired me to start exploring another option to transpose a result from a query. Using Result Of One Query In Another Sep 29, 2004. hi, i've tried searching on this but not having much luck, i'm trying to use the result of one and use it in another. The following picture illustrates A UNION B: plz i really need this query to continue my project Navigate: Previous Message • Next Message The subquery returns a single value: the average list price in the PRODUCT table. The first sql query runs on DB1 that exists on server1. So for example, i would use the result of this query and store it in a variable called @tmp_id (if possible) Here is how I do it. i have to use query cascades ? I need to make three select queries over three different tables, using the outputs of each select query, the catch is each one gives multiple results. I think I read using an array ight be the answer but I dont know, please help. 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