oracle-sqldeveloper

I'm executing a statement like DELETE FROM USER WHERE USER_ID=1; In SQLDeveloper. As the user is referenced in many tables (for example the user has an order, settings, ...) we activated ON DELETE CASCADE so that we do not have to delete each and every row manually. However while developing we are interested to know how many rows and and in which tables are "automatically" deleted by cascade delete. Is there any way to find this out. Either by SQL-Statement, directly in sqldeveloper from a logfile or any other idea? whilst this is not possible with sql%rowcount, it is possible if you write

Im new to oracle multidimensional models... I have followed the "Creating a Multidimensional Model" 15 min Oracle tutorial. Tutorial Link Note: This tutorial use sql developer data modeler. I would like to know how to query the created data cube using SQL Developer (I.E. using regular SQL DML statements). Every time I look for information online I end up getting links on how to use the Oracle Analytic Workspace Manager. Why? I would like to just build the cube and query it without having to make use of the Oracle Analytic Workspace Manager. I would appreciate if somone could let me know if I

I want to read a file on my local machine that contains query parameters when I execute a query in Oracle SQL developer. The examples that I've found on the web so far are inadequate. I keep getting "ORA-29283: invalid file operation" errors when I execute the below code: CREATE DIRECTORY SAMPLEDATA2 AS 'C:'; GRANT READ, WRITE ON DIRECTORY SAMPLEDATA2 TO PUBLIC; declare f utl_file.file_type; s varchar2(200); c number := 0; BEGIN f := utl_file.fopen('SAMPLEDATA2','sample2.txt','R'); loop utl_file.get_line(f,s); dbms_output.put_line(s); c := c + 1; end loop; exception when NO_DATA_FOUND then utl

I want to store Japanese(or any language) character in one column of my oracle database table. I have used varchar2 as data type. when I am trying to insert this character(ꏕ) to this column its stored as '[]'. Don't know what to do. Need help. Note: I tried to change the data type to nvarchar2 still didn't work. https://translate.google.co.in/?hl=en&tab=wT#auto/en/Kinj%20A%20%CC%88%EA%8F%95%20%C9%82%20%C8%82%20%C4%82%20%E6%82%A9%0A%ED%82%A9%20%C3%84%20%EA%8F%95%20%C9%82%C8%82%C4%82%20%E6%82%A9 来源： https://stackoverflow.com/questions/37117331/how-to-store-japanese-character-in-oracle-db

This question already has answers here : SELECT every employee that has a higher salary than the AVERAGE of his department (7 answers) Closed 5 years ago . i have a table called employees which i have name, department_id and salary in it. I want to find the employees whose salary is greater than the average of their department and see their names, department_id, salary and the average salary of their department. I have written this code but it does not work. How can we fix this? Thanks in advance. SELECT name, department_id, salary, avg(salary) FROM employees GROUP BY name, department_id,