String sqlUpdate = "update student set name = concat(name , 'copy')"; //3.ResultSet类,用来存放获取的结果集!! statement.executeUpdate(sqlUpdate); sql = "select * from student"; //3.ResultSet类,用来存放获取的结果集!! rs = statement.executeQuery(sql); System.out.println("---"); Syst...
问Mockito InvalidUseOfMatchersExceptionENMock测试就是在测试过程中，对于某些不容易构造或者不容易获取的...
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private static Todo readData(Connection connection) throws SQLException { log.info("Read data"); PreparedStatement readStatement = connection.prepareStatement("SELECT * FROM todo;"); ResultSet resultSet = readStatement.executeQuery(); if (!resultSet.next()) { log.info("There is no data in the...
Can the title bar of an atomic service project be removed? How do I set the default language and application name to Chinese? How do I query the PID of an application process? How do I deploy .so files in the debugging and release phases with code signature enabled? Is there any...
Use try-with-resources or close this "ResultSet" in a "finally" clause. 修改为: 或者参考如下: Use "Arrays.toString(array)" instead. 参考如下: 说明:这种提示是随机数应该需要重用,然后他给出的参考是这样的 Either re-interrupt this method or rethrow the "InterruptedException". ...
in the driver package. To use this provider, copy themssql-jdbc_auth-<version>-<arch>.dllfile to a directory on the Windows system path on the computer where the JDBC driver is installed. Alternatively you can set the java.library.path system property to specify the directory of themssql...
If set to "true" and 'defaultFetchSize' is set to a value higher than zero or 'setFetchSize()' with a value higher than zero is called on a statement, then the cursor-based result set will be used. Please note that 'useServerPrepStmts' is automatically set to "true" in this case...
in the driver package. To use this provider, copy themssql-jdbc_auth-<version>-<arch>.dllfile to a directory on the Windows system path on the computer where the JDBC driver is installed. Alternatively you can set the java.library.path system property to specify the directory of themssql...
datax 的 oceanbasev10reader/ oceanbasev10writer 专用插件,在底层会自动设置一些相关参数如 ResultSet.TYPE_FORWARD_ONLY/rewriteBatchedStatements,且当用户没有显示配置readBatchSize会自动设置 DEFAULT_READ_BATCH_SIZE. 相关源码: com.alibaba.datax.plugin.reader.oceanbasev10reader.ext.ReaderTask#startRead0 com...