Alternative to minus operator in oracle

Thanks a lot for your reply dallan. I have marked your reply as correct. Ask Question Asked years, months ago. Browse other questions tagged oracle minus or ask your own question. Oracle Alternative to EXISTS EXCEPT.

The Minus Operator in SQL is used with two SELECT statements. The MINUS operator is used to subtract the result set obtained by first SELECT query from the result set obtained by second SELECT query. In simple words, we can say that MINUS operator will return only those rows which are unique in only.

Use this function in applications that will be moved between environments with differing character sets. MINUS operator ( in oracle) is used to subtract the rows which are available in the second result, from the first result set. You can combine multiple queries using the set operators UNION, UNION ALL, INTERSECT, and MINUS. All set operators have equal precedence. A MINUS also requires that both queries have the same number of columns, and that each column has the same data type as the corresponding column in the other query (or one convertible to the same type).

A MINUS will return all rows from the first query where there is not an exact match column for column with the second query. How to find unmatched rows in oracle without using set. For databases such as SQL Server, PostgreSQL, and SQLite, use the EXCEPT operator to perform this type of query. The EXCEPT query and MINUS query returns all rows in the first query that are not returned in the second query. Each SQL statement within the EXCEPT query and MINUS query must have the same number of fields in the result sets with similar data types.

Summary: in this tutorial, you will learn how to use the SQL MINUS operator to subtract one result set from another. Introduction to SQL MINUS operator. Besides the UNION, UNION ALL, and INTERSECT operators, SQL provides us with the MINUS operator that allows you to subtract one result set from another result set. The use of DBlink in my views should be the last option although there are some question where users might want to say that there is no alternative. Well recently at my work I had to compare two data set that were on different tables and do a minus operator to make sure that both the tables are same.

Now, suppose we want to use apostrophe in our literal value but we can’t use it directly. Hi Tom, now i am confused than before. From emp e left join dept d on ( e.deptno = d.deptno and d.deptno is null ) you have said - I want every record from EMP joined to a DEPT record such that the DEPT record has the same deptno AND the DEPT records deptno is NULL. This is easier to use than not exists. And set operators are one of the rare cases where the database considers null values to be equal.

Learn about the DBA skills assesse the topics covered in the exam, recommended training courses to prepare, and related steps to earn your credential. Also I need to find an alternative for ROWNUM in oracle. Home Articles Misc Here. SQL for Beginners (Part 6) : Set Operators. The WITH clause may be processed as an inline view or resolved as a temporary table.

Learn more about the skills assesse recommended training and exam preparation, as well as information on how to register. Best alternative for an INTERSECT? MySQL Database Forums on Bytes.

The MINUS compares the of two queries and returns distinct rows from the result set of the first query that does not appear in the result set of the second query.