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* split up select.md * array-join.md basic refactoring * distinct.md basic refactoring * format.md basic refactoring * from.md basic refactoring * group-by.md basic refactoring * having.md basic refactoring * additional index.md refactoring * into-outfile.md basic refactoring * join.md basic refactoring * limit.md basic refactoring * limit-by.md basic refactoring * order-by.md basic refactoring * prewhere.md basic refactoring * adjust operators/index.md links * adjust sample.md links * adjust more links * adjust operatots links * fix some links * adjust aggregate function article titles * basic refactor of remaining select clauses * absolute paths in make_links.sh * run make_links.sh * remove old select.md locations * translate docs/es * translate docs/fr * translate docs/fa * remove old operators.md location * change operators.md links * adjust links in docs/es * adjust links in docs/es * minor texts adjustments * wip * update machine translations to use new links * fix changelog * es build fixes * get rid of some select.md links * temporary adjust ru links * temporary adjust more ru links * improve curly brace handling * adjust ru as well * fa build fix * ru link fixes * zh link fixes * temporary disable part of anchor checks
51 lines
1.8 KiB
Markdown
51 lines
1.8 KiB
Markdown
---
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machine_translated: true
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machine_translated_rev: 72537a2d527c63c07aa5d2361a8829f3895cf2bd
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toc_priority: 40
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toc_title: REVOKE
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---
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# REVOKE {#revoke}
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Revoca privilegios de usuarios o roles.
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## Sintaxis {#revoke-syntax}
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**Revocación de privilegios de usuarios**
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``` sql
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REVOKE [ON CLUSTER cluster_name] privilege[(column_name [,...])] [,...] ON {db.table|db.*|*.*|table|*} FROM {user | CURRENT_USER} [,...] | ALL | ALL EXCEPT {user | CURRENT_USER} [,...]
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```
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**Revocación de roles de usuarios**
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``` sql
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REVOKE [ON CLUSTER cluster_name] [ADMIN OPTION FOR] role [,...] FROM {user | role | CURRENT_USER} [,...] | ALL | ALL EXCEPT {user_name | role_name | CURRENT_USER} [,...]
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```
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## Descripci {#revoke-description}
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Para revocar algún privilegio, puede usar un privilegio de alcance más amplio que planea revocar. Por ejemplo, si un usuario tiene `SELECT (x,y)` privilegio, administrador puede realizar `REVOKE SELECT(x,y) ...`, o `REVOKE SELECT * ...` o incluso `REVOKE ALL PRIVILEGES ...` consulta para revocar este privilegio.
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### Revocaciones parciales {#partial-revokes-dscr}
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Puede revocar una parte de un privilegio. Por ejemplo, si un usuario tiene `SELECT *.*` privilegio puede revocarle un privilegio para leer datos de alguna tabla o una base de datos.
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## Ejemplos {#revoke-example}
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Otorgue el `john` cuenta de usuario con un privilegio para seleccionar de todas las bases de datos `accounts` una:
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``` sql
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GRANT SELECT ON *.* TO john;
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REVOKE SELECT ON accounts.* FROM john;
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```
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Otorgue el `mira` cuenta de usuario con un privilegio para seleccionar entre todas las columnas `accounts.staff` excepción de la tabla `wage` una.
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``` sql
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GRANT SELECT ON accounts.staff TO mira;
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REVOKE SELECT(wage) ON accounts.staff FROM mira;
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```
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{## [Artículo Original](https://clickhouse.tech/docs/en/operations/settings/settings/) ##}
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