In Java, string is basically an object that represents sequence of char values. An array of characters works same as Java string. Java String class provides a lot of methods to perform operations on ...
with t as (select replace ('1234567890', '', '1234567890') as a), u as (select replace (a, '', a) as b from t), v as (select b, replace (b, '', b) as c from u) select length (replace (c, '', b)) from ...
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