crystal reports barcode not showing - and Field-Mapping Clauses in Font

Encoder Code39 in Font - and Field-Mapping Clauses

Table- and Field-Mapping Clauses
Encoding Code 3 Of 9 In None
Using Barcode generator for Font Control to generate, create Code 39 Extended image in Font applications.
www.OnBarcode.com
Making GS1 - 12 In None
Using Barcode printer for Font Control to generate, create UPC-A Supplement 5 image in Font applications.
www.OnBarcode.com
During a load session, SQL*Loader takes the data fields in the data records and converts them into table columns. The table- and field-mapping clauses pertain to the mapping process between data fields and table columns. The control file provides details about fields, including the column name, position, input record data types, delimiters, and data transformation parameters.
EAN128 Generator In None
Using Barcode maker for Font Control to generate, create GS1 128 image in Font applications.
www.OnBarcode.com
Paint GS1 - 13 In None
Using Barcode encoder for Font Control to generate, create UPC - 13 image in Font applications.
www.OnBarcode.com
Table Column Name
Print QR Code ISO/IEC18004 In None
Using Barcode creation for Font Control to generate, create Denso QR Bar Code image in Font applications.
www.OnBarcode.com
DataMatrix Creation In None
Using Barcode maker for Font Control to generate, create Data Matrix 2d barcode image in Font applications.
www.OnBarcode.com
Each column in the table is specified clearly, with the position and data type of the matching field value in the input file. You don t need to load all the columns in the table. If you omit any columns in the control file, they re set to null.
Code 39 Full ASCII Maker In None
Using Barcode printer for Font Control to generate, create Code-39 image in Font applications.
www.OnBarcode.com
Drawing Ames Code In None
Using Barcode drawer for Font Control to generate, create Ames code image in Font applications.
www.OnBarcode.com
CHAPTER 13 LOADIN G AN D TRANSFORMING DATA
Decoding USS Code 39 In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Code 39 Full ASCII Creation In None
Using Barcode encoder for Font Control to generate, create Code 3/9 image in Font applications.
www.OnBarcode.com
Position
Printing Code 128B In Objective-C
Using Barcode drawer for iPad Control to generate, create Code 128 image in iPad applications.
www.OnBarcode.com
UPC - 13 Drawer In C#.NET
Using Barcode generator for Visual Studio .NET Control to generate, create EAN 13 image in .NET framework applications.
www.OnBarcode.com
SQL*Loader must have a way of knowing the location of the various fields in the input file. Oracle calls the individual items in the datafile fields, and there is no direct correspondence between these fields and the columns in the table in which you are loading the data. The process of mapping fields in the input datafile to the table columns in the database is called field setting, and it is the biggest contributor to CPU time taken during the load. The POSITION clause specifies exactly where in the data record the various fields are. You have two ways to specify the location of the fields: relative and absolute. Relative position implies that you specify the position of a field with respect to the position of the preceding field, as shown in the following example: employee_id POSITION(*) NUMBER EXTERNAL 6 employee_name POSITION(*) CHAR 30 In this example, the load starts with the first field, employee_id. SQL*Loader then expects employee_name to start in position 7 and continue for 30 characters. It will look for the next field starting at position 37, and so on. When you use the POSITION clause in an absolute position sense, you just specify the position at which each field starts and ends, as follows: employee_id POSITION(1:6) INTEGER EXTERNAL employee_name POSITION(7:36) CHAR
Universal Product Code Version A Creator In Java
Using Barcode printer for Android Control to generate, create UPCA image in Android applications.
www.OnBarcode.com
Create EAN-13 In VS .NET
Using Barcode creator for .NET Control to generate, create EAN13 image in VS .NET applications.
www.OnBarcode.com
Data Types
Drawing UPC-A Supplement 5 In Visual Studio .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create UPC-A Supplement 2 image in Visual Studio .NET applications.
www.OnBarcode.com
Code 39 Full ASCII Generation In Java
Using Barcode creation for Android Control to generate, create Code-39 image in Android applications.
www.OnBarcode.com
The data types used in the control file refer to the input records only and aren t the same as the column data types within the database tables. The following are the main data types used in SQL*Loader control files: INTEGER(n) binary integer, where n can be 1, 2, 4, or 8 SMALLINT CHAR INTEGER EXTERNAL FLOAT EXTERNAL DECIMAL EXTERNAL
Creating Barcode In None
Using Barcode creation for Word Control to generate, create Barcode image in Word applications.
www.OnBarcode.com
Make Barcode In Visual Studio .NET
Using Barcode drawer for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
Delimiters
Create UPC - 13 In Objective-C
Using Barcode maker for iPhone Control to generate, create EAN / UCC - 13 image in iPhone applications.
www.OnBarcode.com
EAN-13 Decoder In Visual C#
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
After each column s data type is specified, you can specify a delimiter, which indicates how the field should be delimited. You can delimit data by using one of the following two clauses: TERMINATED BY or ENCLOSED BY. TERMINATED BY limits the field to the character specified and denotes the end of a field. Here are a couple of examples: TERMINATED BY WHITESPACE TERMINATED BY "," The first example indicates that the field is terminated by the first blank that is encountered. The second example simply indicates that the fields are separated by commas. The ENCLOSED BY " " delimiter specifies that the field is enclosed by a pair of quotation marks. Here is an example: FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
C HA PTER 13 LOA DI NG A ND T RANS FORMING DA TA
Tip Oracle recommends that you avoid delimited fields and choose positional fields (using the POSITION parameter) where possible. Choosing positional fields means that the database avoids scanning the datafile to find the delimiters you chose, thus reducing processing time.
Data Transformation Parameters
You can apply SQL functions to the field data before loading it into table columns. Only SQL functions that return single values can be used for transforming field values in general. The field should be denoted inside the SQL string as field_name. You specify the SQL function(s) after you specify the data type for the field, and you enclose the SQL string in double quotation marks, as shown in the following examples: field_name CHAR TERMINATED BY "," "SUBSTR(:field_name, 1, 10)" employee_name POSITION 32-62 CHAR "UPPER(:ename)" salary position 75 CHAR "TO_NUMBER(:sal,'$99,999.99')" commission INTEGER EXTERNAL "":commission * 100" As you can see, the application of SQL operators and functions to field values before they are loaded into tables helps you transform the data at the same time you are loading it. This is a handy feature.
Copyright © OnBarcode.com . All rights reserved.