| drop dataverse test if exists; | |
| create dataverse test; | |
| use dataverse test; | |
| write output to nc1:"rttest/string_substring-before-3.adm"; | |
| let $c1 := substring-before("HEllow","") | |
| let $c2 := substring-before("HEllow",null) | |
| let $c3 := substring-before("",null) | |
| let $c4 := substring-before("","") | |
| let $c5 := substring-before(null,null) | |
| return {"result1": $c1, "result2": $c2, "result3": $c3, "result4": $c4, "result5": $c5} |