Question

我正在开发Oracle to TD迁移项目。在那里，我必须从Teradata SP编写一个外部文件，该文件是从bteq（通过unix中的ksh）调用的。我想过从bteq本身写一个文件，但问题是，我有很多变量，我不能在bteq中使用。请帮帮我。

先谢谢，

Answer 1

正确编写调用BTEQ的KSH脚本可以包含UNIX环境变量。以下是我过去如何做到这一点的简单示例。我相信您可以将示例扩展为甚至包括在要执行的SQL语句中解析环境变量。

#!/usr/bin/ksh
###############################################################################
SHELL_NAME=`basename $0`
PRG_NAME=`basename ${SHELL_NAME} .ksh`
BTQLOG=${PRG_NAME}.log
BTQOUT=${PRG_NAME}.out
LOGON=${PRG_NAME}.con
#
CREATEUS='create_user.spl'
#
if [[ ! -e ${CREATEUS} ]]; then 
   echo "FAILED: Missing ${CREATEUS} - Place ${CREATEUS} in same location as ${SHELL_NAME}"
   return 1
fi 
#
bteq <<EOBTQ > ${BTQLOG} 2>&1
.run file=${LOGON};

.SET WIDTH 255;
/*
|| CREATE_USER Stored Procedure - This procedure is intended to be used by the individual SECADMIN user(s) to create databases
*/

.LABEL CREATE_USER_PROC

SELECT 'X' (TITLE '')
  FROM DBC.TablesV
 WHERE DatabaseName = 'SECADMIN'
   AND TableName    = 'CREATE_USER'
   --AND TableKind    = 'P'
;

.IF ACTIVITYCOUNT > 0 THEN .GOTO CREATE_ROLE_PROC;

.IF ERRORCODE > 0 THEN .QUIT ERRORCODE;

.COMPILE FILE = '${CREATEUS}';

.IF ERRORCODE > 0 THEN .QUIT ERRORCODE;
.LABEL EXIT_BTEQ

.QUIT ERRORLEVEL;

EOBTQ
#
STATUS=$?
#
if (( ${STATUS} != 0))
then 
   echo "FAILED: ${SHELL_NAME} completed with non-zero returne code  - Check ${BTQLOG} for details"
else 
   echo "SUCCSSS: ${SHELL_NAME} - Check ${BTQLOG} for details"
fi
#
return ${STATUS}

如何从Teradata SP写外部文件？

1 个答案: