This article mainly tells you about the actual operations that DB2 UDB for iSeries indexes can process in parallel, the following describes the actual operations that DB2 UDB for iSeries indexes can process in parallel. We hope this will help you in your future studies.
When people consider parallel processing in the database engine, they immediately think of Improving the query response time by using multi
In our example, account is a single table operation.
The preceding essays have generated the accountdataset accountdatatable accountentity accountrule accountsystem class.
So I will not repeat it here.
If you do not want to do this, you can download the Demo code directly.
Create a new winform named testsingletable. CS.
And draw the interface as follows.
Here I am lazy and pull accountdataset to the screen as the data source of the screen's gridview.
Some Cl commands do not produce an OUTFILE like the command in Example 4-99 does.
However, please allow you to spool the output. In this section, we show how to process
Results of a command that produces a spool file. First, we create a program on the iseries
Host that copies a spool file into a database file. Then we show an example that callthe
Dspautusr to generate a spool file, callthe program to copy the spool file into a database
File, and reads
myschema. myfile use the second Member, member2.
Example 4-98 using ovrdbf to access the second member of a multi-member File
Rc = callpgm ("ovrdbf file (myfile) tofile (myschema/myfile) MBR (member2) ovrscope (* job )",
CN );
// Now a select * From myschema. myfile will access member member2
Cmd. commandtext = "select * From myschema. myfile ";
Idb2datareader DR = cmd. executereader ();
// Etc.
Processing Cl commands that produce an OUTFILE
Using Cl commands provide an option to store the comm
Brief introduction
When people consider parallel processing in the database engine, they immediately think of an improved query response time by using multiple processors to process a single query. It is often not noticed that parallel processing can also speed up index processing, thereby improving the overall performance of the database server. Using the Ibm®db2®universal database™ (UDB) for iseries™, it is possible to use multiple CPUs for index p
Migrate the Linux kernel from 2.4 to 2.6 On iSeries and pSeries -- Linux general technology-Linux programming and kernel information. The following is a detailed description. Level: elementary
Matt Davis, Linux consultant, IBM
Chakarat skawratanond, technical consultant, IBM
Nikolay Yevik, Linux consultant, IBM
In this article, we will focus on the differences between Linux kernel 2.4 and 2.6 in POWER.
Differences between Linux kernel 2.4 and 2.6 in
The previous method was very stupid. It was to concatenate each field into a string using the | method.In fact, only now can we find that we can use runsqlstmt to run this SQL statement and then output it to a spool file.The following is the idea:1. Assemble the SQL statement, the old oneProgramAvailable2. output the assembled SQL statement to the default member of qtemp/runsqlsrc.3. Call runsqlstmt to execute the SQL statement.4. Copy the output spool file to PF.5. Copy to folder or Sendmail if
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1. Create a physical file
Direct operations in strseu or navigator are recommended.
2. Create a primary key for a physical file
Navigator is recommended.
3. Logging physical files
In strjrnpf or in navigator, select the table and log record,
1. External Storage Process-think this is better and can save the encapsulated RPG or CL
Program . The efficiency is also significant,
After all, it is direct Io.
It is relatively simple to bind Cl. sqlrpg hasn't done it yet. Some people know it,
The
1. The host v5r4, that is, the I5 machine, has a function row_number ()-this is not verified because its host environment is v5r3.
Select * from (select row_number () over (order by ID) as RN, * From Table1) as Te
2. The host is v5r3 or the
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// C # download the image file locally, C #, C #, download the image, download the file, and download the Function// Download the image from the image address to the local disk// Save the binary file to the disk
Using system;Using system. drawing;Using system. collections;
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