ExecuteNonQuery>0表示执行的操作成功影响了至少一行数据。具体来说：ExecuteNonQuery方法：这是用于执行诸如INSERT、UPDATE、DELETE等不返回数据集的SQL语句的方法。返回值：该方法返回一个整数，表示受SQL语句影响的行数。返回值>0：通常意味着插入、删除或更新操作已成功，至少有一行数据受到了影响。然而，需要...
在编程中，ExecuteNonQuery()方法执行SqlCommand，其返回值表示受影响的行数，主要用于确认操作是否成功。当返回值大于0时，通常意味着插入、删除或更新操作已成功。然而，这个规则并非通用，比如某些数据库结构下，返回-1也可能表示成功，这可能与我们的直观理解有所出入，因此在使用时需要注意操作的具体语境。
可以使用 ExecuteOracleNonQuery 来执行目录操作, (例如查询数据库的结构或创建数据库对象(例如表) );或者,通过使用 执行 UPDATE、INSERT 或 DELETE 语句来更改数据库中的数据,而无需使用 DataSet。 ExecuteOracleNonQuery 与ExecuteNonQuery 不同之处在于,如果正在执行只影响一行的 INSERT、DELETE 或 UPDATE 语句,它将...
Execute Non Query is ADO.Net Object it is used for execute SQL Statement for Insert,Update Delete, and it does not return any value 0 Jul, 2013 18 It is use to excute the command which returns no record like our insert,update and delete opration. 0 Jul, 2013 1 Hello friend...
和Java一样,python也提供了对于checked exception和unchecked exception. 对于checked exception,我们通常使用...
O. Use EXECUTE with AT DATA_SOURCE data_source_name to query a remote SQL Server Applies to: SQL Server 2019 (15.x) and later versions. The following example passes a command string to an external data source pointing to a SQL Server instance. SQL Copy EXECUTE ( 'SELECT @@SERVERNAME...
问Oracle.DataAccess execute non-query返回值(存储过程)EN返回值对于UPDATE、INSERT和DELETE语句，返回值...
O. Use EXECUTE with AT DATA_SOURCE data_source_name to query a remote SQL ServerApplies to: SQL Server 2019 (15.x) and later versions.The following example passes a command string to an external data source pointing to a SQL Server instance....
O. Use EXECUTE with AT DATA_SOURCE data_source_name to query a remote SQL Server Applies to: SQL Server 2019 (15.x) and later versions. The following example passes a command string to an external data source pointing to a SQL Server instance. SQL Copy EXECUTE ( 'SELECT @@SERVERNAME...
This commands executes a Gremlin query. Amazon Neptune is compatible with Apache TinkerPop3 and Gremlin, so you can use the Gremlin traversal language to query the graph, as described under The Graph in the Apache TinkerPop3 documentation. More details can also be found in Accessing a Neptune ...