For workstation-attached systems, use the following BTEQ command line options:
- Causes BTEQ to just return its own version information using the "Teradata BTEQ <version> for <platform>" format.
- Causes short form BTEQ version information to be generated, comprised of only the version value itself.
- -c [Charset Encoding]
- Defines the initial session character set encoding for BTEQ at startup time. This value can be a character set name or a character set code. By default, this option also defines the I/O encoding BTEQ uses if the -e and -m options are not used (see below).
The -c option overrides charset values defined in the clispb.dat file. To start a UTF-16 session, this option is required. The SESSION CHARSET command can subsequently be used (certain restrictions apply; see SESSION CHARSET) to change BTEQ's session character set. If the -c option and the clispb.dat file are not used to define a session character set, BTEQ sets SESSION CHARSET to ASCII.
- -e [I/O Encoding]
- Defines the I/O encoding BTEQ uses. This option is valid only when BTEQ is initially set to use a UTF8 or UTF16 session character set (either through the -c option or through the clispb.dat file). The value supplied must be the UTF8 or UTF16 name or code (63 or 62, respectively). Once the -e option has been used, the I/O encoding cannot be changed for that session. It is recommended that the -e option be used before the -c option.
- Indicates that I/O encoding for an interactive Unicode session is encoded in multibyte characters based on the system locale, instead of true Unicode code points. This option does not use arguments and requires the use of the -c option, but not the -e option. Without this option, BTEQ always uses the default “C” locale.
Disclaimer:When a locale is in effect (activated by the -m option), BTEQ is limited to the type of characters that it can handle. For example, Thai characters cannot be read or displayed when a Russian locale is used. Characters outside the locale are most likely substituted with question marks ('?').
Example for defining the locale on Windows:
- Open the Control Panel.
- Select Regional and Language Options.
- Select a value for Language for non-Unicode programs.
The appropriate language support might have to be installed first if the required language is not available.
- A reboot might be necessary.
Example for defining the locale on a UNIX operating system:
- Use locale -a to view the available locales.
- Set the LC_CTYPE environment variable to an available locale.
- Indicates that a Byte Order Mark (BOM) should be written to redirected stdout and stderr streams. This option is only valid for Workstation BTEQ sessions that generate Unicode output, where the I/O encoding is based upon the use of a -c option, -e option, or the encoding of the stdin script. It is BTEQ's intention to write a BOM only to output streams that are not being displayed to the terminal. If stdout and stderr are redirected to the same file or device, only one BOM will be written. If they are redirected separately, each stream will receive a BOM. But if stdout or stderr is being appended to a file, a BOM will not be written, since the file has already been established. Similarly, if no text is written to stdout or stderr, a solitary BOM will not be written. The -ob option can also be used when the output stream is redirected to a pipe.
When these options and BTEQ commands are specified on the command line, the command line options must be defined first. Examples for using the command line options include those shown in the following table:
|Command Line Options||Description|
|bteq||Interactive mode: charset and I/O encoding default to ASCII.|
|bteq -c ASCII < script||Batch mode using an ASCII script: charset and I/O encoding are ASCII.|
|bteq -c KANJISJIS_0S||Interactive mode: charset and I/O encoding are KanjiShift-JIS.|
|bteq -c UTF8 < script||Batch mode using a UTF-8 script: charset and I/O encoding are UTF8.|
|bteq -ob -c UTF16 < script > out 2>&1||Batch mode using a UTF-16 script: charset and I/O encoding are UTF16. A single BOM is written to the beginning of the "out" file.|
|bteq -e UTF8 -c UTF16 < script||Batch mode using a UTF-8 script: charset is UTF16, I/O encoding is UTF8.|
|bteq -e 62 -c 63 < script||Batch mode using a UTF-16 script: charset is UTF8, I/O encoding is UTF16.|
|bteq -c utf16 -m||Interactive mode: charset is UTF16, I/O encoding based on locale.|
|bteq -c utf8 -m||Interactive mode: charset is UTF8, I/O encoding based on locale.|
For Mainframe BTEQ, the command line input can be passed in the JCL PARM parameter of the BTEQ STEP, and should follow following IBM/C rules for specifying the run-time options and program arguments:
|Only run-time options are present||run-time options/|
|Only program arguments are present
||One of the following:
|Both run-time options and program arguments are present,||run-time options / program arguments|
//BTEQ00 EXEC PGM=BTQMAIN,PARM='.RUN DDNAME RUNFILE'
(a leading '/' is needed because the logon string contains '/')
//BTEQ00 EXEC PGM=BTQMAIN,PARM='/.LOGON TDP0/DBC,DBC'