Contents
- 1 How to solve exact fetch returns more than requested number of rows?
- 2 How do you resolve ORA-01422 exact fetch returns more than requested number of rows?
- 3 What are the three parameter modes for procedures Mcq?
- 4 What is Ora 01403 No data found?
- 5 What are the three parameter modes for procedure?
- 6 Which parameter acts like a constant inside the subprogram Mcq?
How to solve exact fetch returns more than requested number of rows?
1. More than requested rows in “Select into”: If ‘Select Into’ statement returns more than one rows in variable then this error will come. The error says fetch returns more than requested number of rows means ‘Exact Fetch’ will return ‘More than one row’.
How do you resolve ORA-01422 exact fetch returns more than requested number of rows?
When an ORA-01422 is triggered, your SELECT INTO statement is retrieving multiple rows of data or none at all. If it is returning multiple, the predefined exception TOO_MANY_ROWS will be raised, and for no returns the PL/SQL will raise NO_DATA_FOUND.
How to resolve ORA-01422 error?
For example, if you tried to execute the following SQL statement: SELECT supplier_id INTO cnumber FROM suppliers WHERE supplier_name = ‘IBM’; And there was more than one record in the suppliers table with the supplier_name of IBM, you would receive the ORA-01422 error message.
What are the three parameter modes for procedures Mcq?
The three parameter modes, IN (the default), OUT , and IN OUT , can be used with any subprogram.
What is Ora 01403 No data found?
The ORA-01403 error derives from an SQL query meant to return all data requested, but no data was found. The error is often associated with SELECT INTO clauses, which fetch rows or sets of columns from a database. When a SELECT INTO query fails to return a single row, the ORA-01403 error is triggered in the system.
What are the cursors in SQL?
A cursor in SQL is a temporary work area created in system memory when a SQL statement is executed. A SQL cursor is a set of rows together with a pointer that identifies a current row. It is a database object to retrieve data from a result set one row at a time.
What are the three parameter modes for procedure?
PL/SQL procedure parameters can have one of three possible modes: IN, OUT, or IN OUT. PL/SQL function parameters can only be IN.
Which parameter acts like a constant inside the subprogram Mcq?
Inside the subprogram, an IN parameter acts like a constant.