how to count characters in string

regexp_count fonksiyonu belirttiğiniz string kadar içerisinden hangi

karakterden kaç adet olduğunu öğrenmenize yardımcı olur.


regexp_count(‘a,a,b,b,c,c,d,d,e,a,a,b,d,c’,’a’) a_count,
regexp_count(‘a,a,b,b,c,c,d,d,e,a,a,b,d,c’,’b’) b_count,
regexp_count(‘a,a,b,b,c,c,d,d,e,a,a,b,d,c’,’c’) c_count,
regexp_count(‘a,a,b,b,c,c,d,d,e,a,a,b,d,c’,’d’) d_count,
regexp_count(‘a,a,b,b,c,c,d,d,e,a,a,b,d,c’,’e’) e_count

FROM dual;


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