If there is a table definition that is used in several jobs, I would like to change table definition (for example, column name) in one place and have all
database stages that refers to it get default SQL changed. Also I would like to have name and password recorded in one place only so it a user id is changed - do not change in in 20 stages... What is the best way to do it?
is table definition shared?
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Dynamic table definitions wired into jobs - this feature is not in DataStage.
Dynamic credentials - use a job parameter in your credential fields (userid, password, server, directory, etc) and supply the parameter value at runtime via job control.
Dynamic credentials - use a job parameter in your credential fields (userid, password, server, directory, etc) and supply the parameter value at runtime via job control.
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ray.wurlod
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Welcome aboard! :D
What you seek is not delivered in DataStage. One of the reasons is that so much of the SQL can be job parameters - table owner, table name, constants in a WHERE clause. It's true that you can not use job parameters as column names, but there is no search-and-replace facility for column names.
You might try exporting, editing the export file, and importing afterwards, then re-compiling the jobs.
Others might suggest you hack the repository tables; since you're a newcomer I would definitely advise against that, for a number of reasons. First, you void your warranty. Second, Ascential do not publish the structure of the repository, and reserve the right to change it at any time. Third, location of column definitions and of SQL is not constant; it varies depending on stage type and purpose (stream input, reference input or stored procedure).
What you seek is not delivered in DataStage. One of the reasons is that so much of the SQL can be job parameters - table owner, table name, constants in a WHERE clause. It's true that you can not use job parameters as column names, but there is no search-and-replace facility for column names.
You might try exporting, editing the export file, and importing afterwards, then re-compiling the jobs.
Others might suggest you hack the repository tables; since you're a newcomer I would definitely advise against that, for a number of reasons. First, you void your warranty. Second, Ascential do not publish the structure of the repository, and reserve the right to change it at any time. Third, location of column definitions and of SQL is not constant; it varies depending on stage type and purpose (stream input, reference input or stored procedure).
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Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
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s_boyapati
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Re: is table definition shared?
You can get some functionality towards what you are looking for, by using "Column-generated SQL".julia wrote:If there is a table definition that is used in several jobs, I would like to change table definition (for example, column name) in one place and have all
database stages that refers to it get default SQL changed. Also I would like to have name and password recorded in one place only so it a user id is changed - do not change in in 20 stages... What is the best way to do it?