What is no data found exception in Oracle?
What is no data found exception in Oracle?
So, PL/SQL predefines some common Oracle errors as exceptions. For example, PL/SQL raises the predefined exception NO_DATA_FOUND if a SELECT INTO statement returns no rows….Predefined PL/SQL Exceptions.
| Exception | Oracle Error | SQLCODE Value |
|---|---|---|
| STORAGE_ERROR | ORA-06500 | -6500 |
| SUBSCRIPT_BEYOND_COUNT | ORA-06533 | -6533 |
How do you handle no data found exception?
Answer: To prevent the PLSQL code from dropping to the exception code when a record is not found, you’ll have to perform a count first to determine the number of records that will be returned. For example: — Check to make sure that at least one record is returned SELECT COUNT(1) INTO v_count FROM sales.
How do I fix Ora-01403 No data found?
If you attempt to access the updated files at a later date, the ORA-01403 error will occur. To fix this, re-create tables from the initial controlling database.
How do you handle no data found exception in PL SQL?
For example, PL/SQL raises the predefined exception NO_DATA_FOUND if a SELECT INTO statement returns no rows. You can use the pragma EXCEPTION_INIT to associate exception names with other Oracle error codes that you can anticipate. To handle unexpected Oracle errors, you can use the OTHERS handler.
What does no data found mean?
Cause: In a host language program, all records have been fetched. The return code from the fetch was +4, indicating that all records have been returned from the SQL query.
What is Pragma Exception_init in Oracle?
The pragma EXCEPTION_INIT associates an exception name with an Oracle error number. You can intercept any ORA- error and write a specific handler for it instead of using the OTHERS handler.
How do I resolve ORA 01438?
To solve this issue, you must bind the variable as string (SQLT_CHR) with fixed length instead. Before inserting NULL must be converted into an empty string (equals to NULL in Oracle) and all other integer values must be converted into its string representation.
How do I fix error ORA 06512?
The ORA-06512 error message indicates the line number of the unhandled error in the PLSQL code….The options to resolve this Oracle error are:
- Fix the condition that is causing the unhandled error.
- Write an exception handler for this unhandled error.
- Contact your DBA for help.
What is Pragma EXCEPTION_INIT in Oracle?
What is Raise_application_error in PL SQL?
The procedure raise_application_error allows you to issue an user-defined error from a code block or stored program. By using this procedure, you can report errors to the callers instead of returning unhandled exceptions.
How does NVL work in Oracle?
The Oracle NVL() function allows you to replace null with a more meaningful alternative in the results of a query. The NVL() function accepts two arguments. If e1 evaluates to null, then NVL() function returns e2 . If e1 evaluates to non-null, the NVL() function returns e1 .
What is the difference between Raise_application_error and pragma EXCEPTION_INIT?
EXCEPTION_INIT is helps to assign a error number to the exception and which can be raised using RAISE and can be handled in EXCEPTION block. RAISE_APPLICATION_ERROR is used to return a valid error message to the calling application like Java, .
What is Sqlcode and Sqlerrm in Oracle?
SQLCODE and SQLERRM are Oracle’s built-in error reporting functions in PL/SQL. When an error occurs in PL/SQL at runtime: SQLCODE returns the number of the last encountered error. SQLERRM returns the message associated with its error-number argument.
How do you fix Ora 01438 value larger than specified precision allowed for this column?
Action: Enter a value that complies with the numeric column”s precision, or use the MODIFY option with the ALTER TABLE command to expand the precision. Because ORA-01438 often consists of an erred entry in your SQL, it is often the case that syntax needs to be evaluated.
What is scale and precision in Oracle?
The Oracle NUMBER data type has precision and scale. The precision is the number of digits in a number. It ranges from 1 to 38. The scale is the number of digits to the right of the decimal point in a number. It ranges from -84 to 127.
What is the difference between Pragma EXCEPTION_INIT and RAISE_APPLICATION_ERROR?
What is SQLCODE and Sqlerrm in Oracle?
