Re: String function to Find how many times str2 is in str1? - Mailing list pgsql-sql

Pavel Stehule wrote:
> Hello
> 
> what about
> 
> CREATE OR REPLACE FUNCTION Foobar(text, text)
> RETURNS integer AS $$
> SELECT array_upper(string_to_array($1,$2),1) - 1;
> $$ LANGUAGE SQL IMMUTABLE;
> 
> On 15/02/2008, Rodrigo E. De León Plicet <rdeleonp@gmail.com> wrote:
>> On Fri, Feb 15, 2008 at 11:09 AM, Emi Lu <emilu@encs.concordia.ca> wrote:
>>  >  Str1 = "test   test   caa   dtest   testing   EndofString";
>>  >  Str2 = "   ";
>>  >
>>  >  select funcName(Str1, Str2);
>>  >
>>  >  return 5
>>
>>
>> CREATE OR REPLACE FUNCTION
>>   FOOBAR(TEXT,TEXT)
>>  RETURNS INT AS $$
>>   SELECT(LENGTH($1) - LENGTH(REPLACE($1, $2, ''))) / LENGTH($2) ;
>>  $$ LANGUAGE SQL IMMUTABLE;
>>
>>  SELECT FOOBAR('test   test   caa   dtest   testing   EndofString', '   ');
>>
>>   foobar
>>  --------
>>       5
>>  (1 row)
>>
If there is not a system func for this, I will do this way.
Thank you for all inputs.
Ly