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62 lines
1.7 KiB
Markdown
62 lines
1.7 KiB
Markdown
---
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machine_translated: true
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machine_translated_rev: 72537a2d527c63c07aa5d2361a8829f3895cf2bd
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toc_priority: 46
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toc_title: GenerateRandom
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---
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# Generaterandom {#table_engines-generate}
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El motor de tabla GenerateRandom produce datos aleatorios para el esquema de tabla determinado.
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Ejemplos de uso:
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- Se usa en la prueba para poblar una tabla grande reproducible.
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- Generar entrada aleatoria para pruebas de fuzzing.
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## Uso en el servidor ClickHouse {#usage-in-clickhouse-server}
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``` sql
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ENGINE = GenerateRandom(random_seed, max_string_length, max_array_length)
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```
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El `max_array_length` y `max_string_length` parámetros especifican la longitud máxima de todos
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columnas y cadenas de matriz correspondientemente en los datos generados.
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Generar motor de tabla sólo admite `SELECT` consulta.
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Es compatible con todos [Tipos de datos](../../../sql-reference/data-types/index.md) que se pueden almacenar en una tabla excepto `LowCardinality` y `AggregateFunction`.
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**Ejemplo:**
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**1.** Configurar el `generate_engine_table` tabla:
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``` sql
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CREATE TABLE generate_engine_table (name String, value UInt32) ENGINE = GenerateRandom(1, 5, 3)
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```
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**2.** Consultar los datos:
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``` sql
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SELECT * FROM generate_engine_table LIMIT 3
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```
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``` text
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┌─name─┬──────value─┐
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│ c4xJ │ 1412771199 │
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│ r │ 1791099446 │
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│ 7#$ │ 124312908 │
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└──────┴────────────┘
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```
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## Detalles de la implementación {#details-of-implementation}
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- No soportado:
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- `ALTER`
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- `SELECT ... SAMPLE`
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- `INSERT`
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- Indice
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- Replicación
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[Artículo Original](https://clickhouse.tech/docs/en/operations/table_engines/generate/) <!--hide-->
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