thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-17 13:13:36 +00:00
Code Issues Packages Projects Releases Wiki Activity
84883197d6
ClickHouse/docs/es/sql_reference/table_functions/generate.md
Ivan Blinkov 765dd7c495
Update some docs translations (#10044)
2020-04-04 12:15:31 +03:00

2.2 KiB
Raw Blame History

machine_translated machine_translated_rev toc_priority toc_title
true 3e185d24c9 47 generateRandom

generateRandom

Genera datos aleatorios con un esquema dado. Permite rellenar tablas de prueba con datos. Admite todos los tipos de datos que se pueden almacenar en la tabla, excepto LowCardinality y AggregateFunction.

generateRandom('name TypeName[, name TypeName]...', [, 'random_seed'[, 'max_string_length'[, 'max_array_length']]]);

Parámetros

  • name — Name of corresponding column.
  • TypeName — Type of corresponding column.
  • limit — Number of rows to generate.
  • max_array_length — Maximum array length for all generated arrays. Defaults to 10.
  • max_string_length — Maximum string length for all generated strings. Defaults to 10.
  • random_seed — Specify random seed manually to produce stable results. If NULL — seed is randomly generated.

Valor devuelto

Un objeto de tabla con el esquema solicitado.

Ejemplo de uso

SELECT * FROM generateRandom('a Array(Int8), d Decimal32(4), c Tuple(DateTime64(3), UUID)', 1, 10, 2);

┌─a────────┬────────────d─┬─c──────────────────────────────────────────────────────────────────┐
│ [77]     │ -124167.6723 │ ('2061-04-17 21:59:44.573','3f72f405-ec3e-13c8-44ca-66ef335f7835') │
│ [32,110] │ -141397.7312 │ ('1979-02-09 03:43:48.526','982486d1-5a5d-a308-e525-7bd8b80ffa73') │
│ [68]     │  -67417.0770 │ ('2080-03-12 14:17:31.269','110425e5-413f-10a6-05ba-fa6b3e929f15') │
└──────────┴──────────────┴────────────────────────────────────────────────────────────────────┘

Artículo Original