specified. LAG Examples Suppose you have RATE table that stores the exchange rate for each day. To trace the change of the exchange rate over the past five days you can use the following query. select Run utilities such as gbak, gfix, nbackup and so on • Shut down a database and bring it online • Trace other users' attachments • Access the monitoring tables • Run management statements The implementation nbackup to create database copies CHANGE_SHUTDOWN_MODE Shut down database and bring online TRACE_ANY_ATTACHMENT Trace other users' attachments MONITOR_ANY_ATTACHMENT Monitor (tables MON$) other users' attachments

Codes SQLCODE GDSCODE SYMBOL TEXT -901 335544840 no_update Cannot update -901 335544842 stack_trace %s -901 335544843 ctx_var_not_found Context variable %s is not found in namespace %s -901 335544844

shutdown mode is invalid for database "@1" -901 335544840 no_update Cannot update -901 335544842 stack_trace @1 -901 335544843 ctx_var_not_found Context variable @1 is not found in namespace @2 -901 335544844

базы данных "@1" -901 335544840 no_update Cannot update Не могу обновить -901 335544842 stack_trace @1 -901 335544843 ctx_var_not_found Context variable @1 is not found in namespace @2 Контекстная

mode is invalid for database "@1" -901 335544840 no_update Cannot update -901 335544842 stack_trace @1 -901 335544843 ctx_var_not_found Context variable @1 is not found in namespace @2 -901 335544844

mode is invalid for database "@1" -901 335544840 no_update cannot update -901 335544842 stack_trace @1 -901 335544843 ctx_var_not_found Context variable @1 is not found in namespace @2 -901 335544844