hive驱动statement设置setQueryTimeout报错Method not supported,1、Explain查看执行计划explain可以查看执行计划--创建大表createtablebigtable(idbigint,tbigint,uidstring,keywordstring,url_rankint,click_numint,click_urlstring)rowformatdelimitedfieldsterminatedb
stmt = conn.createStatement();stmt.setQueryTimeout(2);String sql="delete from TestTB17 where id<250"; int deleted=stmt.executeUpdate(sql); log.info("CleanExpiredMocker deleted "+deleted+" records.");; } catch (Exception e) { System.out.print(e.getMessage()); e.printStackTrace(); } ...
packagecom.hy.multidelete;importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.SQLException;importjava.sql.Statement;importorg.apache.log4j.Logger;publicclassDeleter {privatestaticLogger log = Logger.getLogger(Deleter.class);publicvoiddoDelete() { Connection conn=null; Statement stmt=null;...
注:setQueryTimeout语句还是好用的,但有些环境不支持,下文是在单位虚拟机上的Oracle发生的事情,而setQueryTimeout语句在我家机器上的Oracle是支持的,详情请见。 本以为,遇到其它session导致行锁发生的情况,设置Statement.setQueryTimeout(seconds)就好了,至少不会让程序等待太长时间,但是事与愿违,我发现无论是设置自...
設定驅動程式將等候這個SQLServerStatement物件執行指定秒數的秒數。 語法 public final void setQueryTimeout(int seconds) 參數 seconds int,指出等候的秒數,如果沒有任何限制則為 0。 例外狀況 SQLServerException 備註 這個setQueryTimeout 方法是由 java.sql.Statement 介面中的 setQueryTimeout 方法所指定。
For information about setting local variables with the SET statement, seeSET@local_variable(Transact-SQL). Expand table CategoryStatements Date and time statementsSET DATEFIRST SET DATEFORMAT Locking statementsSET DEADLOCK_PRIORITY SET LOCK_TIMEOUT ...
AlterXmlSchemaCollectionStatement ApplicationRoleOption ApplicationRoleOptionKind ApplicationRoleStatement AssemblyEncryptionSource AssemblyName AssemblyOption AssemblyOptionKind AssemblyStatement AssignmentKind AssignmentSetClause AsymmetricKeyCreateLoginSource AtomicBlockOption AtomicBlockOptionKind AttachMode AtTimeZoneCall ...
3年淘宝运营支撑系统研发，6年云数据库平台架构，RDS，NoSQL业务
The fields of an IRD have a default value only after the statement has been prepared or executed and the IRD has been populated, not when the statement handle or descriptor has been allocated. Until the IRD has been populated, any attempt to gain access to a field of an IRD will return...
statement.setQueryTimeout(timeout);try(ResultSet rs = statement.executeQuery("SELECT 1")) {if(rs.next())returntrue; }returnfalse; } 开发者ID:olavloite,项目名称:spanner-jdbc,代码行数:15,代码来源:CloudSpannerConnection.java 示例5: createStatement ...