resultset update
之前要進行新增、更新或刪除資料，都必須要撰寫SQL，然後使用executeUpdate()來執SQL，將SQL寫在executeUpdate ()之中，其實是一件麻煩又容易出錯的動作， ... ,A ResultSet object is a table of data representing a database result set, which is ... The concurrency of a ResultSet object determines what level of update ... ,您可以在Connection.prepareStatement 或Connection.createStatement 方法中使用特殊參數，來指定ResultSet 的更新能力、捲動能力及保留能力。 , Try to add updateRow() to your code like this: rs.beforeFirst(); while (rs.next()) if(rs.getInt("ID")!=k) rs.updateInt("ID", k); rs.updateRow(); k++; } }.,The problem is you are trying to do a preparedStatement.update while you are iterating the resultset . To make it work easily, follow these steps: Iterate over the ... ,CONCUR_UPDATABLE and ResultSet.TYPE_SCROLL_INSENSITIVE described in the Result Set tutorial. This example would explain INSERT, UPDATE and ... ,The following code makes a result set that is scrollable and insensitive to updates by others: try // Create a statement that will return updatable result sets , CONCUR_UPDATABLE concurrency to create an updatable result set object. An updatable ResultSet object allows us to update a column ...,A ResultSet is a Java object that contains the results of executing an SQL query. .... refresh-Row ), or (3) use that row as a starting point for moving to other rows ...
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 resultset update 相關參考資料
ResultSet 新增、更新、刪除資料 - OpenHome.cc
之前要進行新增、更新或刪除資料，都必須要撰寫SQL，然後使用executeUpdate()來執SQL，將SQL寫在executeUpdate ()之中，其實是一件麻煩又容易出錯的動作， ... https://openhome.cc Retrieving and Modifying Values from Result Sets (The Java ...
A ResultSet object is a table of data representing a database result set, which is ... The concurrency of a ResultSet object determines what level of update ... https://docs.oracle.com 在JDBC 應用程式中指定ResultSet 的更新能力、捲動能力及保留能力 - IBM
您可以在Connection.prepareStatement 或Connection.createStatement 方法中使用特殊參數，來指定ResultSet 的更新能力、捲動能力及保留能力。 https://www.ibm.com How to update values in JDBC using Resultset - Stack Overflow
Try to add updateRow() to your code like this: rs.beforeFirst(); while (rs.next()) if(rs.getInt("ID")!=k) rs.updateInt("ID", k); rs.updateRow(); k++; } }. https://stackoverflow.com How to select and update the resultset? - Stack Overflow
The problem is you are trying to do a preparedStatement.update while you are iterating the resultset . To make it work easily, follow these steps: Iterate over the ... https://stackoverflow.com JDBC - Updating a Result Set Example - Tutorialspoint
CONCUR_UPDATABLE and ResultSet.TYPE_SCROLL_INSENSITIVE described in the Result Set tutorial. This example would explain INSERT, UPDATE and ... https://www.tutorialspoint.com How to Use Updatable ResultSet in JDBC? - XyzWS.com
The following code makes a result set that is scrollable and insensitive to updates by others: try // Create a statement that will return updatable result sets http://www.xyzws.com JDBC - Updatable ResultSet example | BORAJI.COM
CONCUR_UPDATABLE concurrency to create an updatable result set object. An updatable ResultSet object allows us to update a column ... https://www.boraji.com ResultSet
A ResultSet is a Java object that contains the results of executing an SQL query. .... refresh-Row ), or (3) use that row as a starting point for moving to other rows ... http://www.cs.mun.ca |