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LPAD
Fill a character string to a specified length on the left side with designated characters (spaces by default). If the string is already longer than the specified length, it is truncated on the right side. See also RPAD.
LPAD(string, length [ , characters ] )
For example, add a sequence of zeroes to the left side of the teamid
column, for a length of 10 characters:
premdb=# SELECT LPAD(teamid::char(10),10,'0') FROM team;
lpad
------------
0000000001
0000000002
0000000003
0000000004
0000000005
0000000006
0000000007
0000000008
0000000009
0000000010
...
Parent topic:String Functions