Name Query Output Columns in Oracle

Q

How To Name Query Output Columns in Oracle?

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A

Each column in the query output has a default name. If you don't like the default name, you can specify a new name for any column in the query output by using the AS clause. The following statement shows you a good example:

SQL> SELECT department_id AS ID, MIN(salary) AS Low, 
  2  MAX(salary) AS High, AVG(salary) AS Average 
  3  FROM employees GROUP BY department_id 
  4  HAVING AVG(salary) < 5000;
        ID        LOW       HIGH    AVERAGE
---------- ---------- ---------- ----------
        30       2500      11000       4150
        50       2100       8200 3475.55556
        10       4400       4400       4400

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⇑⇑ Oracle Database Tutorials

2019-09-27, 3356🔥, 2💬

Query with a Left Outer Join in Oracle
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Query with a Full Outer Join in Oracle
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Inner Join with the WHERE Clause in Oracle
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Counting Groups Returned with the GROUP BY Clause in Oracle
How To Count Groups Returned with the GROUP BY Clause in Oracle? If you use the COUNT(*) function on groups returned with the GROUP BY clause, it will count the number of rows within each group, not the number of groups. If you want to count the number of groups, you can put the GROUP BY query into ... 2019-09-16, 3361🔥, 0💬

Name Query Output Columns in Oracle
How To Name Query Output Columns in Oracle? Each column in the query output has a default name. If you don't like the default name, you can specify a new name for any column in the query output by using the AS clause. The following statement shows you a good example: SQL> SELECT department_id... 2019-09-27, 3357🔥, 2💬

💬 2019-09-19 Aninda mahadev: Good Tutorial!!!

Left Outer Join with the WHERE Clause in Oracle
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Query with a Right Outer Join in Oracle
How To Write a Query with a Right Outer Join in Oracle? If you want to query from two tables with a right outer join, you can use the RIGHT OUTER JOIN ... ON clause in the FROM clause. The following query returns output with a right outer join from two tables: departments and employees. The join con... 2019-10-18, 3120🔥, 0💬

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