Teradata SQL - how to get everything before hyphen?
1
The question is how to get all data before hyphen using SQL in Teradata?
The pattern is like this : 123ABC-456. I need only 123ABC.
This regex expression:
SELECT RegExp_Replace('123ABC-456', 'w[^-]*$')
returns "123ABC-" with hyphen for some reason
and this "^[^-]*[^ -]" - returns "-456" instead of "123ABC"
Please any help?
sql teradata
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
add a comment |
1
The question is how to get all data before hyphen using SQL in Teradata?
The pattern is like this : 123ABC-456. I need only 123ABC.
This regex expression:
SELECT RegExp_Replace('123ABC-456', 'w[^-]*$')
returns "123ABC-" with hyphen for some reason
and this "^[^-]*[^ -]" - returns "-456" instead of "123ABC"
Please any help?
sql teradata
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
What if there's no hyphen? Do you want the whole string or an empty string?
– dnoeth
Nov 14 '18 at 12:02
I see you've accepted the answer below, but regexp_substr seems like overkill to me.STRTOK(<column>,'-',1)
– Andrew
Nov 14 '18 at 15:48
add a comment |
1
1
1
The question is how to get all data before hyphen using SQL in Teradata?
The pattern is like this : 123ABC-456. I need only 123ABC.
This regex expression:
SELECT RegExp_Replace('123ABC-456', 'w[^-]*$')
returns "123ABC-" with hyphen for some reason
and this "^[^-]*[^ -]" - returns "-456" instead of "123ABC"
Please any help?
sql teradata
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
The question is how to get all data before hyphen using SQL in Teradata?
The pattern is like this : 123ABC-456. I need only 123ABC.
This regex expression:
SELECT RegExp_Replace('123ABC-456', 'w[^-]*$')
returns "123ABC-" with hyphen for some reason
and this "^[^-]*[^ -]" - returns "-456" instead of "123ABC"
Please any help?
sql teradata
sql teradata
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
asked Nov 14 '18 at 8:40
John JohnsonJohn Johnson
184
184
What if there's no hyphen? Do you want the whole string or an empty string?
– dnoeth
Nov 14 '18 at 12:02
I see you've accepted the answer below, but regexp_substr seems like overkill to me.STRTOK(<column>,'-',1)
– Andrew
Nov 14 '18 at 15:48
add a comment |
What if there's no hyphen? Do you want the whole string or an empty string?
– dnoeth
Nov 14 '18 at 12:02
I see you've accepted the answer below, but regexp_substr seems like overkill to me.STRTOK(<column>,'-',1)
– Andrew
Nov 14 '18 at 15:48
What if there's no hyphen? Do you want the whole string or an empty string?
– dnoeth
Nov 14 '18 at 12:02
What if there's no hyphen? Do you want the whole string or an empty string?
– dnoeth
Nov 14 '18 at 12:02
I see you've accepted the answer below, but regexp_substr seems like overkill to me.
STRTOK(<column>,'-',1)– Andrew
Nov 14 '18 at 15:48
I see you've accepted the answer below, but regexp_substr seems like overkill to me.
STRTOK(<column>,'-',1)– Andrew
Nov 14 '18 at 15:48
add a comment |
1 Answer
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0
You can try using REGEXP_SUBSTR()
select REGEXP_SUBSTR('123ABC-456', '^[^-]*[^ -]')
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
thank you, this worked. but what's the difference? regex expression anyway should give data before hyphen?
– John Johnson
Nov 14 '18 at 9:11
When I test it using RegExp_Replace() it didn't work, but REGEXP_SUBSTR() it gives the correct val, but the expression is same for both case
– fa06
Nov 14 '18 at 9:12
add a comment |
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1 Answer
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1 Answer
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0
You can try using REGEXP_SUBSTR()
select REGEXP_SUBSTR('123ABC-456', '^[^-]*[^ -]')
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
thank you, this worked. but what's the difference? regex expression anyway should give data before hyphen?
– John Johnson
Nov 14 '18 at 9:11
When I test it using RegExp_Replace() it didn't work, but REGEXP_SUBSTR() it gives the correct val, but the expression is same for both case
– fa06
Nov 14 '18 at 9:12
add a comment |
0
You can try using REGEXP_SUBSTR()
select REGEXP_SUBSTR('123ABC-456', '^[^-]*[^ -]')
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
thank you, this worked. but what's the difference? regex expression anyway should give data before hyphen?
– John Johnson
Nov 14 '18 at 9:11
When I test it using RegExp_Replace() it didn't work, but REGEXP_SUBSTR() it gives the correct val, but the expression is same for both case
– fa06
Nov 14 '18 at 9:12
add a comment |
0
0
0
You can try using REGEXP_SUBSTR()
select REGEXP_SUBSTR('123ABC-456', '^[^-]*[^ -]')
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
You can try using REGEXP_SUBSTR()
select REGEXP_SUBSTR('123ABC-456', '^[^-]*[^ -]')
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
answered Nov 14 '18 at 9:07
fa06fa06
13.4k2917
13.4k2917
thank you, this worked. but what's the difference? regex expression anyway should give data before hyphen?
– John Johnson
Nov 14 '18 at 9:11
When I test it using RegExp_Replace() it didn't work, but REGEXP_SUBSTR() it gives the correct val, but the expression is same for both case
– fa06
Nov 14 '18 at 9:12
add a comment |
thank you, this worked. but what's the difference? regex expression anyway should give data before hyphen?
– John Johnson
Nov 14 '18 at 9:11
When I test it using RegExp_Replace() it didn't work, but REGEXP_SUBSTR() it gives the correct val, but the expression is same for both case
– fa06
Nov 14 '18 at 9:12
thank you, this worked. but what's the difference? regex expression anyway should give data before hyphen?
– John Johnson
Nov 14 '18 at 9:11
thank you, this worked. but what's the difference? regex expression anyway should give data before hyphen?
– John Johnson
Nov 14 '18 at 9:11
When I test it using RegExp_Replace() it didn't work, but REGEXP_SUBSTR() it gives the correct val, but the expression is same for both case
– fa06
Nov 14 '18 at 9:12
When I test it using RegExp_Replace() it didn't work, but REGEXP_SUBSTR() it gives the correct val, but the expression is same for both case
– fa06
Nov 14 '18 at 9:12
add a comment |
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What if there's no hyphen? Do you want the whole string or an empty string?
– dnoeth
Nov 14 '18 at 12:02
I see you've accepted the answer below, but regexp_substr seems like overkill to me.
STRTOK(<column>,'-',1)– Andrew
Nov 14 '18 at 15:48