Can we create an sql function with the name of a built in derby function?
For example, I need to create a function that replaces SUBSTR.
I am working with the Derby Embedded database and I need to do this with that.
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Can we create an sql function with the name of a built in derby function?
For example, I need to create a function that replaces SUBSTR.
I am working with the Derby Embedded database and I need to do this with that.
SUBSTR is a built in function and a reserved keyword in derby.
You won’t be able to replace that out of the box. Derby doesn’t support functions with the same name and different method signatures.
You could download the sources, change the relevant function definition and compile your own version of derby.