Delete from customers1 where custid in (select Custid from #Temp_customers1) Will the above query work? Not entirely, as by using the above query, we lost all the duplicate records!! Let us see the table again.
We require to keep a single row and remove the duplicate rows. We need to remove only duplicate rows from the table. For example, the EmpID 1 appears two times in the table. We want to remove only one occurrence of it. We use the SQLMAXfunction to calculate the max id of each data...
dates. To ensure that only 10 rows are deleted, the column specified in the subselect statement (PurchaseOrderID) is the primary key of the table. Using a nonkey column in the subselect statement may result in the deletion of more than 10 rows if the specified column contains duplicate ...
In this post we look at ways to remove all duplicate rows except one in an SQL database. For all examples in this article, we'll be using the following MySQL "user" table: +---+---+ | id | name | +
任务运行时异常:java.lang.RuntimeException: Writing records to JDBC failed. 问题描述/异常栈 2021-11-29 18:51:53 java.lang.RuntimeException: Writing records to JDBC failed. at org.apache.flink.connector.jdbc.internal.JdbcBatchingOutputFormat.checkFlushException(JdbcBatchingOutputFormat.java:154) at ...
SOCKETDUPLICATEQUEUE_CLEANUP Internal use only.Applies to: SQL Server 2016 (13.x) and later versions. SOS_CALLBACK_REMOVAL Occurs while performing synchronization on a callback list in order to remove a callback. It isn't expe...
Duplicate column name '%s' 语句中指定了重复的列名。请确认SQL中显式指定的列名存在重复。 1064 42000 You have an error in your SQL syntax; %s SQL语句中存在语法错误,请参考SQL语法文档进行校正。SQL语法文档,请参见SQL参考。 1082 42S12 Table '%s' has no index like the one used in CREATE INDEX...
Specifies the error response when an insert operation attempts to insert duplicate key values into a unique index. The IGNORE_DUP_KEY option applies only to insert operations after the index is created or rebuilt. The option has no effect when executing CREATE INDEX, ALTER INDEX, or UPDATE. Th...
One row contains 2 (DELETE) and the other row contains 1 (INSERT) in this column. Specified using the OPERATION_TYPE_DESC_COLUMN_NAME option. ledger_operation_type_desc if not specified. nvarchar(128) Contains INSERT or DELETE. See above for details. Transactions that include creating ledger ...
One workaround is to create a user-defined "after insert" trigger on the OlapQueryLog table in your relational database to duplicate the newly inserted rows into your own table. This table can be manually maintained as you want. For example: ...