Generation 7 random sequence of numbers
Hellocreate sequences centers_seq
begins with 1234567 increment of 1;
This statement will create and start the sequence 1234567 and increments by 1 while I'm of course unique and trying to generate random 7 digit
Thank you in anticipation
Best regards
Raakh wrote:
I want to generate the login ID, but not in a sequence. IDS are 100 steps more so I need to auto generate unique random ID to 7 digits
Well, you can take a random semi approach:
SQL> create sequence s start with 100 maxvalue 999
2 /
Sequence created.
SQL> select s.nextval * 10000 + trunc(dbms_random.value(1000,9999)) unique_semi_random_7_digit_num from dual
2 /
UNIQUE_SEMI_RANDOM_7_DIGIT_NUM
------------------------------
1007776
SQL> /
UNIQUE_SEMI_RANDOM_7_DIGIT_NUM
------------------------------
1017247
SQL> /
UNIQUE_SEMI_RANDOM_7_DIGIT_NUM
------------------------------
1025913
SQL> /
UNIQUE_SEMI_RANDOM_7_DIGIT_NUM
------------------------------
1033573
SQL>
SY.
Tags: Database
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