DB2 V9.7 Linux installation record DB2 installation in Linux (RedHat Enterprise Linux 5.4) _ graphical user interfaces can be used or manually installed. First, we will introduce the simplest installation method. 1. Download DB2 9.7 express C from
Today, the customer visited (Japanese) and asked me the difference between DB2 and Oracle. Because it's not a DBA, I haven't really summed it up. But my first feeling: One is instance, one is database. Building Ora libraries and DB2 libraries is not
Comparison of concurrency control (LOCK) between DB2 and Oracle
Comparison of concurrency control (LOCK) between DB2 and Oracle
1 Introduction
The minimal recovery and transaction units in relational databases (DB2, Oracle, Sybase, Informix, and
Reposted from: longtang Bay
1.1.1 obtain the first N records
SQL Server: Select Top N * From xtable
ORACLE: Select * From xtable where rownum
DB2: Select * From xtable fetch first n rows only
1.1.2 obtain the current date
SQL Server: Select getdate
Hchao, a moderator of the IBMDB2 database Professional Forum, once published a blog post to help DB2DBA avoid performance disasters and achieve high performance. I have summarized a fault diagnosis process for our customers, users, and DB2 experts.
Check archiving processing View Log Archive status DB2 "Select Date (CAST (start_time as TIMESTAMP)) as DATE, COUNT (*) as Number_of_logs_per_day, (Count (*) *23.4375) as AMOUNT_LOGS_DAY_MB, Dbpartitionnum as Dbpart From Sysibmadm. Db_history WHERE
DB2 is a series of relational database management systems exported by IBM, which serve on different operating system platforms. We will explain the DB2 ten optimization techniques.To help DB2 DBAs avoid performance disasters and get high performance,
1 Introduction
The minimal recovery and transaction units in relational databases (DB2, Oracle, Sybase, Informix, and SQL Server) are a transaction (Transactions). Transactions are ACID (atomicity, consistency, isolation, and durability) feature. In
DB2 default need to switch to db2inst1 this default user to perform the action[Email protected] instance]# Su-db2inst1[Email protected] ~]$ Db2start[Email protected] ~]$ DB2 force application All[Email protected] ~]$ Db2stop[Email protected] db2]$
1 Introduction
In relational databases (Db2,oracle,sybase,informix and SQL Server) the smallest recovery and transaction units are one transaction (transactions), and transactions have acid (atomicity, consistency, isolation, and permanence)
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