DIGITS
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The DIGITS() function allows for turning numbers to 0-padded string that makes sorting those strings according to numeric values easier when concatenated to other strings. The padding depends on the number's data type, precision, and scale.
SELECT digits(cast(1234.5 as decimal(8, 2)));
create.select(digits(cast(val(1234.5), DECIMAL(8, 2)))).fetch();
The result being
+----------+ | digits | +----------+ | 00123450 | +----------+
Dialect support
This example using jOOQ:
digits(cast(val(1234.5), DECIMAL(7, 2)))
Translates to the following dialect specific expressions:
Access
(replace(space(7 - len(cstr(cdec(abs((cdec(1.2345E3) * 100)))))), ' ', '0') & cstr(cdec(abs((cdec(1.2345E3) * 100)))))
ASE
(replicate( '0', (7 - char_length(CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS varchar(7)))) ) || CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS varchar(7)))
Aurora MySQL, MariaDB, MemSQL, MySQL
lpad( CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS char(7)), 7, '0' )
Aurora Postgres, DuckDB, Exasol, Firebird, HSQLDB, Hana, Postgres, Teradata, Trino, Vertica, YugabyteDB
lpad( CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS varchar(7)), 7, '0' )
BigQuery
lpad( CAST(CAST(abs((CAST(1.2345E3 AS decimal) * 100)) AS decimal) AS string), 7, '0' )
ClickHouse, DB2
digits(CAST(1.2345E3 AS decimal(7, 2)))
CockroachDB
lpad( CAST(CAST(abs((CAST(CAST(1.2345E3 AS double precision) AS decimal(7, 2)) * 100E0)) AS decimal(7)) AS string(7)), 7, '0' )
H2
lpad( CAST(CAST(abs((CAST(CAST(1.2345E3 AS double) AS decimal(7, 2)) * 100)) AS decimal(7)) AS varchar(7)), 7, '0' )
Informix
lpad( CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS lvarchar(7)), 7, '0' )
Oracle
lpad( CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS varchar2(7)), 7, '0' )
Snowflake
lpad( CAST(CAST(abs((CAST(1.2345E3 AS number(7, 2)) * 100)) AS number(7)) AS varchar(7)), 7, '0' )
SQLDataWarehouse, SQLServer
(replicate( '0', (7 - len(CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * CAST(100 AS decimal(3)))) AS decimal(7)) AS varchar(7)))) ) + CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * CAST(100 AS decimal(3)))) AS decimal(7)) AS varchar(7)))
SQLite
substr(replace(hex(zeroblob(7)), '00', '0'), 1, 7 - length(CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * CAST(100 AS decimal))) AS decimal(7)) AS varchar(7)))) || CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * CAST(100 AS decimal))) AS decimal(7)) AS varchar(7))
Sybase
(repeat( '0', (7 - length(CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS varchar(7)))) ) || CAST(CAST(abs((CAST(1.2345E3 AS decimal(7, 2)) * 100)) AS decimal(7)) AS varchar(7)))
Derby, Redshift
/* UNSUPPORTED */
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