Although WebLogic is an Oracle company product, it is not an article to introduce the configuration data source as an example of Oracle ....To configure the DB2 data source before the 11g version is required to add the package, subsequent versions deal with this issue.1. Rename C:\Program files\sqllib\java\ db2java.zip to. jar file, copy to C:\bea\weblogic81\serv
The db2 tutorial is: use shell to extract and update db2 data. The shell that is written for work needs to process the db2 database program. Use shell to extract and process db2 data.# SQL DefinitionSQL = "SELECT AAA, BBB, CCC FRO
later. In addition, the user owner wants to ensure that no one else can access the data. To implement this function, DB2 has built-in SQL functions that allow applications to encrypt and decrypt data. When you insert data into a database, you can use the encrypted password provided by the user to encrypt the
The db2 tutorial is: Experience in DB2 data synchronization. Plan:
Assume that you will use an application that generates the report. This application requires data in the DEPARTMENT table of the SAMPLE database. Instead of copying data directly from the source table, you wa
Compared with performance, DB2 import and load log records are slow, and data records are too large, which may cause full transaction logs. However, some operations have to be logged, therefore, it is not applicable to import. However, it can be completely avoided with the COMMITCOUNT option. to specify the number of import records, that is, to submit, it helps release logs in a timely manner:
And because t
Tags: DB2 using redirection to recover data and modify table space sizeBackup a DB2 database and restore redirect it to a different location[[Email protected] ~]$ DB2 backup DB erpdb to/home/db2inst1/backups[Email protected]primarynode-1 ~]$ SCP erpdb.0.db2inst1.node0000.catn0000.20170511104723.001 172.16.0.77:/home/d
The db2 tutorial is: Experience in DB2 data synchronization. Plan:Assume that you will use an application that generates the report. This application requires data in the DEPARTMENT table of the SAMPLE database. Instead of copying data directly from the source table, you wan
that the value of the row being processed will not be changed by other concurrent programs. This isolation level is the default isolation level for DB2 isolation level interpretation.
Personal notes
The cursor is locked only when the row is located. This is a very weak isolation state.
Uncommitted Read (UR-Uncommitted Read)
If this isolation level is used, no row lock is applied for read-only operations. Typical read-only operations include:
The resu
This article mainly describes three practical methods for migrating DB2 data. We mainly introduce the actual methods for migrating these three types of DB2 data, as well as descriptions of the things that deserve our attention in actual operations and their shortcomings in actual operations.
This article mainly shares with you three practical operations on DB2 data migration, as well as descriptions of some precautions and disadvantages in actual operations, the following is a detailed description of the actual operations of DB2 data migration. We hope you will have a better understanding of it after brows
This article mainly describes the actual operation steps of DB2 data type conversion. First, we will introduce the actual operation code of DB2 data type conversion to introduce the operation steps of DB2 data type conversion, the
4. DECIMAL (P, S) --- DECIMAL type, where P indicates precision, S indicates DECIMAL places, and implicit DECIMAL places (DECIMAL places are not counted in digits ). For example, MDECIMAL () is the precision of M.
4. DECIMAL (P, S) --- DECIMAL type, where P indicates precision, S indicates DECIMAL places, and implicit DECIMAL places (DECIMAL places are not counted in digits ). For example, m decimal (5, 2) is the precision of M.
Common Data Types
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Common data types for DB2 include the following:
A. Digital type.
1. SMALLINT---Short integral type, the range is -32768~+32767, once used less
2. Int/integer---Integral type, 4 bytes, range is -2147483648~+2147483647, used more than once to do automatically generated seque
Note the Chinese garbled characters in the load command for DB2 data import solution: when you use the load command on windows to import tables to the database today, the Chinese characters in the data are garbled. Command: The Chinese characters in the table www.2cto.com db2 load from d: \ user.txt of del insert into
The shell processing DB2 database, which is written for work needs, extracts DB2 data from the shell and processes it.
#SQL文定义
Sql= "SELECT AAA, BBB, CCC from MYTBL1"
#执行SQL
Sdata= ' DB2 ' "$SQL"
#返回值判断
If [$?-ne 0]
Then
#显示db2返回的错误信息
echo "$SDATA"
Exit 1
Fi
#对取得
This article describes some common techniques to improve data backup and recovery efficiency. If you are confused about the backup and recovery of the DB2 database, you can take a look at it and it will be helpful.
If it takes several hours to back up or restore a DB2 database, the backup and recovery solution will be safe in a timely manner. Or an inappropriate
"Guide" to give a simple example, encryption, decryption passwd is set global, using the DB2 database encryption function Encrypt,decrypt_char implementation.
Cases:
1. C:\>db2 create table encode_demo(col1 varchar(100) for bit data) //字段col1数据按二进制存放 DB20000I SQL 命令成功完成。 2. C:\>db2 set encryption password = 'loveunix
The built-in data types of the DB2 database are mainly divided into numeric, character string, graphic string, and binary string) or datetime ). There is also a special data type called DATALINK. The DATALINK value contains logical references to files not stored in the database.Numeric data types include SMALLINT, INTE
DB2 built-in data types can be divided into numeric, character string, graphic string, binary string, or datetime ). There is also a special data type called datalink. The datalink value contains logical references to files not stored in the database. Numeric data type Including smallint, integer, bigint, decimal (P,
TCP Message Format
TCP (Transmission Control Protocol Transmission Control Protocol) is a connection-oriented, reliable, byte-throttling-based transport-layer communication protocol.
There are 10 required fields and an optional field in the header of the TCP message segment. The header is at least 20 bytes. The data behind the header is optional.
1) Source port (16-bit)
Identifies the computer port or
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