I have 2 delete statements that are taking a long time to complete. There are several indexes on the columns in where clause. What is a duplicate?If 2 or more records have same values in columns id,cid,type,trefid,ordrefid,amount and paydt then there are duplicates. The DELETEs delete...
If a cached query eliminates duplicate records with DISTINCT processing (for example, SELECT DISTINCT...), then requests for the cached columns must also include the DISTINCT processing; a request for the same column without the DISTINCT processing is a cache miss. Queries must contain compatible ...
update_statement :: = update_clause [where_clause] delete_statement :: = delete_clause [where_clause]The update and delete clauses determine the type of the entities to be updated or deleted. The WHERE clause may be used to restrict the scope of the update or delete operation....
But this is a very inefficient method. In fact, ORACLE will convert "*" into all column names in turn during the parsing process. This work is done by querying the data dictionary, which means that it will consume more time. 2. Delete duplicate records ...
ORA-12801: error signaled in parallel query server P000ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys foundCauseSign In To view full details, sign in with your My Oracle Support account. Register Don't have a My Oracle Support account? Click to get started!
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When we use the query or statistical analysis function of an in-memory database, we first need to insert data into the relevant tables of the database. This operation often requires an O-R conversion process, that is, converting objects into table records. Then, use SQL statements to ...
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query: The actual SQL query (properly formatted and escaped in this example). destinationTable: A collection that contains a number of sub-fields to tell the API where the query results should be saved. projectId: The unique identifier of the project to export to. ...
I am trying to do a query to return duplicate results, and I seem to be doing something wrong with the syntax. It looks like this: Select I, count(F) WHERE count(F) > 1 GROUP BY I Order by count(F) The error I get looks like this: Error Unable to parse query string for ...