How do you resolve ORA-30926?

Action: Remove any non-deterministic where clauses and reissue the dml. A further clarification to the use of DISTINCT to resolve error ORA-30926 in the general case: You need to ensure that the set of data specified by the USING() clause has no duplicate values of the join columns, i.e. the columns in the ON() clause.

What is ORA-30926?

ORA-30926: unable to get a stable set of rows in the source tables. ORA – 30926 Error occurs when a stable set rows are not found for a large dml activity or a non-deterministic Where Clause. They also suggested that the user try to write, “a query using the where clause in 15th line, and update the Thread.

What is non-deterministic where clause?

The key is the non-deterministic where clauses phrase. That phrase means that the the query inside the USING clause returns a non-unique set of rows. The returned rows can’t be matched uniquely against the target table in the ON clause.

Is merge statement deterministic?

MERGE is a deterministic statement. That is, you cannot update the same row of the target table multiple times in the same MERGE statement.

How can I update a column from another table in Oracle?

Example – Using EXISTS Clause You may wish to update records in one table based on values in another table. Since you can’t list more than one table in the Oracle UPDATE statement, you can use the Oracle EXISTS clause. For example: UPDATE suppliers SET supplier_name = (SELECT customers.

How do I remove duplicates in Oracle SQL Developer?

After “SQL,” enter “select rowid, name from names;.” Delete the duplicate. After “SQL,” enter “delete from names a where rowid > (select min(rowid) from names b where b.name=a.name);” to delete duplicate records. Check for duplicates.

How do you find duplicates in Oracle table?

How to Find Duplicate Records in Oracle

1. SELECT * FROM fruits;
2. SELECT fruit_name, color, COUNT(*) FROM fruits GROUP BY fruit_name, color;
3. SELECT fruit_name, color, COUNT(*) FROM fruits GROUP BY fruit_name, color HAVING COUNT(*) > 1;

How do you determine if a function is deterministic?

Function Determinism

1. A function is considered deterministic if it always returns the same result set when it’s called with the same set of input values.
2. A function is considered nondeterministic if it doesn’t return the same result set when it’s called with the same set of input values.

What are the implications of using non deterministic functions?

Nondeterministic functions result in different output each time they are called with a fixed set of input values even if the database state that they access remains the same. For example, GETDATE() function, results the current date and time value, always a different value.

Can we use DELETE in MERGE statement in Oracle?

The Merge statement was introduced in Oracle 9i and improved upon in Oracle 10g. In Oracle 9i only the INSERT and UPDATE parts were supported, in Oracle 10g DELETE was added. DELETE can only occur in the “merge_update_clause” of the above schema. This means that it must occur in the WHEN MATCHED THEN clause.

Who is Snowflake merging with?

Cirium
The first step is to merge Snowflake and Cirium, not just as companies but in terms of people, expertise, capabilities, data and technology. It’s an exciting time finding out how far we can go together in building the 360-degree view of flight.

Can you UPDATE a view in Oracle?

Answer: A VIEW in Oracle is created by joining one or more tables. When you update record(s) in a VIEW, it updates the records in the underlying tables that make up the View. So, yes, you can update the data in an Oracle VIEW providing you have the proper privileges to the underlying Oracle tables.

How to resolve Oracle-ora-30926 error in DML?

So the solution was found in the suggested action of the message: Action: Remove any non-deterministic where clauses and reissue the dml. A further clarification to the use of DISTINCT to resolve error ORA-30926 in the general case:

When to use shutdown abort or ora-30926?

When attempting to shut down the database, the error: ORA-30926: unable to get a stable set of rows in the source tables is reported. This happens whether it is SHUTDOWN IMMEDIATE or SHUTDOWN. The only way to shut down the database without the error is using SHUTDOWN ABORT. The failing SQL statement uses DUAL to execute a merge :

How to troubleshoot ora-30926 errors in udump?

How to Troubleshoot ORA-30926 Errors? (Doc ID 471956.1) and watch for .trc files in UDUMP when it occurs. 2) Having found the SQL statement, check if it is correct (perhaps using explain plan or tkprof to check the query execution plan) and analyze or compute statistics on the tables concerned if this has not recently been done.

Why is Oracle unable to get stable set of rows in the Source Tables?

ORA-30926: unable to get a stable set of rows in the source tables Cause: A stable set of rows could not be got because of large dml activity or a non-deterministic where clause. The merge was part of a larger batch, and was executed on a live database with many concurrent users. There was no need to change the statement.