The command parameters are as below: -b l --> Run in background mode, while catching the "sessions" related info in db2top -C --> run db2top in snapshot collector mode -d CUST --> database -i 3 --> 3 second interval -m 60 --> limit duration of db2top to 60 minutes -n ...
The command parameters are as below: -b l --> Run in background mode, while catching the "sessions" related info in db2top -C --> run db2top in snapshot collector mode -d CUST --> database -i 3 --> 3 second interval -m 60 --> limit duration of db2top to 60 minutes -n ...
db2fox@bivm:~> db2 "create index i_t1_name on t1(name)" DB20000I The SQL command completed successfully. db2fox@bivm:~> db2 "describe indexes for table t1" Index Index Unique Number of Index Index Null schema name rule columns type partitioning keys --- --- --- DB2FOX I_T1...
The db2top tool comes with DB2, and can be used to calculate the delta values for those snapshot entries in real time. This tool provides a GUI under a command line mode, so that users can get a better understanding while reading each entry. This tool also integrates multiple types of D...
The above command captures a snapshot every 15 seconds for 240minutes. The output file is saved with the default name ofdb2snap-[dbname]-[platform][bit].bin in the current directory. Users can use db2top to analyze the output data, or even export thedata into delimit format where the co...
COMMAND OPTIONS −n specifies the node to attach to. −d specifies the database to monitor. −u specifies the DB2 username used to access the database. −p specifies the DB2 password. −V specifies the default schema used in explains. −i specifies the...
34. What is the difference between UNION and UNION ALL in DB2? The union command combines two or more SELECT statements and can be used on one or more tables. The essential difference between UNION and UNION ALL is that when applied to tables, UNION eliminates duplicate rows, whereas UNION...
Today we'll examine the -V option. This is a useful option when you need to run explains of statements that don't qualify the schema of the tables they access. The db2top tool can be used to list recent dynamic SQL statements and can be used to run db2ex
Users can use SPUFI or QMF statements to perform EXPLAIN for Dynamic SQL statements. They can also include the EXPLAIN command in the Embedded Dynamic SQL statements.24. What are the isolation levels possible? Two isolation levels are possible: One is Cursor Stability and the other is Repeatable...
I know plenty of people who are passionate supporters of the GUI, and indeed it can be a very good way to quickly accomplish one-off activities such as an ad-hoc reorg. However, there are plenty of situations where use of the command line (or better still, DB2 commands embedded in a ...