crystal reports 2008 barcode 128 DATA LOADING AND UNLOADING in Objective-C

Creation Data Matrix in Objective-C DATA LOADING AND UNLOADING

CHAPTER 15 DATA LOADING AND UNLOADING
Create Data Matrix ECC200 In Objective-C
Using Barcode printer for iPhone Control to generate, create Data Matrix image in iPhone applications.
www.OnBarcode.com
ECC200 Creator In Objective-C
Using Barcode generator for iPhone Control to generate, create ECC200 image in iPhone applications.
www.OnBarcode.com
How Do I Load Fixed Format Data
Code 3 Of 9 Creator In Objective-C
Using Barcode creator for iPhone Control to generate, create ANSI/AIM Code 39 image in iPhone applications.
www.OnBarcode.com
Make UPC-A In Objective-C
Using Barcode printer for iPhone Control to generate, create UPCA image in iPhone applications.
www.OnBarcode.com
Often, you have a flat file generated from some external system, and this file is a fixed-length file with positional data. For example, the NAME field is in bytes 1 to 10, the ADDRESS field is in bytes 11 to 35, and so on. We will look at how SQLLDR can import this kind of data for us. This fixed-width, positional data is the optimal data format for SQLLDR to load. It will be the fastest way to process, as the input data stream is somewhat trivial to parse. SQLLDR will have stored fixed-byte offsets and lengths into data records, and extracting a given field is very simple. If you have an extremely large volume of data to load, converting it to a fixed position format is generally the best approach. The downside to a fixed-width file is, of course, that it can be much larger than a simple, delimited file format. To load fixed-width positional data, you will use the POSITION keyword in the control file, for example: LOAD DATA INFILE * INTO TABLE DEPT REPLACE ( DEPTNO position(1:2), DNAME position(3:16), LOC position(17:29) ) BEGINDATA 10Accounting Virginia,USA This control file does not employ the FIELDS TERMINATED BY clause; rather, it uses POSITION to tell SQLLDR where fields begin and end. Note that with the POSITION clause we could use overlapping positions, and go back and forth in the record. For example, if we were to alter the DEPT table as follows ops$tkyte@ORA11GR2> alter table dept add entire_line varchar2(29); Table altered. and then use the following control file LOAD DATA INFILE * INTO TABLE DEPT REPLACE ( DEPTNO position(1:2), DNAME position(3:16), LOC position(17:29), ENTIRE_LINE position(1:29) ) BEGINDATA 10Accounting Virginia,USA the field ENTIRE_LINE is defined as POSITION(1:29). It extracts its data from all 29 bytes of input data, whereas the other fields are substrings of the input data. The outcome of this control file will be as follows:
Print Barcode In Objective-C
Using Barcode creation for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
Make GTIN - 13 In Objective-C
Using Barcode generator for iPhone Control to generate, create UPC - 13 image in iPhone applications.
www.OnBarcode.com
CHAPTER 15 DATA LOADING AND UNLOADING
Make Code 128 Code Set C In Objective-C
Using Barcode drawer for iPhone Control to generate, create Code 128 image in iPhone applications.
www.OnBarcode.com
Generating UPCE In Objective-C
Using Barcode drawer for iPhone Control to generate, create UPC-E Supplement 2 image in iPhone applications.
www.OnBarcode.com
ops$tkyte@ORA11GR2> select * from dept; DEPTNO DNAME LOC ENTIRE_LINE ---------- -------------- ------------- ----------------------------10 Accounting Virginia,USA 10Accounting Virginia,USA When using POSITION, we can use relative or absolute offsets. In the preceding example, we used absolute offsets. We specifically denoted where fields begin and where they end. We could have written the preceding control file as follows: LOAD DATA INFILE * INTO TABLE DEPT REPLACE ( DEPTNO position(1:2), DNAME position(*:16), LOC position(*:29), ENTIRE_LINE position(1:29) ) BEGINDATA 10Accounting Virginia,USA The * instructs the control file to pick up where the last field left off. Therefore (*:16) is just the same as (3:16) in this case. Notice that you can mix relative and absolute positions in the control file. Additionally, when using the * notation, you can add to the offset. For example, if DNAME started 2 bytes after the end of DEPTNO, we could have used (*+2:16). In this example, the effect would be identical to using (5:16). The ending position in the POSITION clause must be the absolute column position where the data ends. At times, it can be easier to specify just the length of each field, especially if they are contiguous, as in the preceding example. In this fashion, we would just have to tell SQLLDR the record starts at byte 1, and then specify the length of each field. This will save us from having to compute start and stop byte offsets into the record, which can be hard at times. In order to do this, we ll leave off the ending position and instead specify the length of each field in the fixed-length record as follows: LOAD DATA INFILE * INTO TABLE DEPT REPLACE ( DEPTNO position(1) char(2), DNAME position(*) char(14), LOC position(*) char(13), ENTIRE_LINE position(1) char(29) ) BEGINDATA 10Accounting Virginia,USA Here we had to tell SQLLDR only where the first field begins and its length. Each subsequent field starts where the last one left off and continues for a specified length. It is not until the last field that we have to specify a position again, since this field goes back to the beginning of the record.
DataMatrix Decoder In VB.NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Make ECC200 In None
Using Barcode drawer for Word Control to generate, create ECC200 image in Word applications.
www.OnBarcode.com
Encoding Barcode In .NET
Using Barcode generator for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
Barcode Encoder In .NET Framework
Using Barcode encoder for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
EAN 13 Drawer In Visual Studio .NET
Using Barcode encoder for .NET framework Control to generate, create GS1 - 13 image in VS .NET applications.
www.OnBarcode.com
USS Code 128 Creation In Java
Using Barcode maker for Java Control to generate, create Code 128 image in Java applications.
www.OnBarcode.com
Print Code 39 In Java
Using Barcode printer for BIRT Control to generate, create Code 39 Extended image in BIRT applications.
www.OnBarcode.com
UPC - 13 Creator In None
Using Barcode encoder for Online Control to generate, create EAN 13 image in Online applications.
www.OnBarcode.com
Barcode Encoder In None
Using Barcode generation for Online Control to generate, create Barcode image in Online applications.
www.OnBarcode.com
Universal Product Code Version A Reader In Visual Basic .NET
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Make ANSI/AIM Code 128 In None
Using Barcode creation for Software Control to generate, create ANSI/AIM Code 128 image in Software applications.
www.OnBarcode.com
Paint Data Matrix ECC200 In Java
Using Barcode printer for BIRT reports Control to generate, create DataMatrix image in BIRT applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.