OPTION indicates that the grantee can grant this access right to other terjemahan - OPTION indicates that the grantee can grant this access right to other Bahasa Indonesia Bagaimana mengatakan

OPTION indicates that the grantee c

OPTION indicates that the grantee can grant this access right to other users, with or
without the grant option.
As a simple example, consider the following statement.
GRANT SELECT ON ANY TABLE TO ricflair
This statement enables user ricflair to query any table in the database.
Different implementations of SQL provide different ranges of access rights.
The following is a typical list:
• Select: Grantee may read entire database; individual tables; or specific
columns in a table.
• Insert: Grantee may insert rows in a table; or insert rows with values for specific
columns in a table.
• Update: Semantics is similar to INSERT.
• Delete: Grantee may delete rows from a table.
• References: Grantee is allowed to define foreign keys in another table that
refer to the specified columns.
The REVOKE command has the following syntax:
REVOKE { privileges | role }
[ON table]
FROM { user | role | PUBLIC }
Thus, the following statement revokes the access rights of the preceding example:
REVOKE SELECT ON ANY TABLE FROM ricflair
Cascading Authorizations
The grant option enables an access right to cascade through a number of users.We
consider a specific access right and illustrate the cascade phenomenonin Figure 5.4 .
The figure indicates that Ann grants the access right to Bob at time t  10 and to
Chris at time t  20. Assume that the grant option is always used. Thus, Bob is able
to grant the access right to David at t  30. Chris redundantly grants the access right
to David at t  50. Meanwhile, David grants the right to Ellen, who in turn grants it
to Jim; and subsequently David grants the right to Frank.
Just as the granting of privileges cascades from one user to another using
the grant option, the revocation of privileges also cascaded. Thus, if Ann
revokes the access right to Bob and Chris, then the access right is also revoked
to David, Ellen, Jim, and Frank. A complication arises when a user receives the
same access right multiple times, as happens in the case of David. Suppose that
Bob revokes the privilege from David. David still has the access right because
it was granted by Chris at t  50. However, David granted the access right to
Ellen after receiving the right, with grant option, from Bob but prior to receiving
it from Chris.Most implementations dictate that in this circumstance, the access
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Hasil (Bahasa Indonesia) 1: [Salinan]
Disalin!
PILIHAN menunjukkan bahwa Penerima hibah dapat memberikan akses ini tepat ke pengguna lain, dengan atautanpa opsi hibah.Sebagai contoh sederhana, mempertimbangkan pernyataan berikut.HIBAH pilih pada setiap meja untuk ricflairPernyataan ini memungkinkan pengguna ricflair untuk setiap tabel dalam database query.Implementasi yang berbeda dari SQL menyediakan berbagai jenis hak akses.Berikut adalah daftar khas:• Pilih: Penerima hibah dapat membaca seluruh database; Tabel individu; atau spesifikkolom dalam tabel.• Masukkan: Penerima hibah dapat menyisipkan baris dalam tabel; atau menyisipkan baris dengan nilai spesifikkolom dalam tabel.• Update: semantik ini mirip dengan INSERT.• Hapus: Penerima hibah dapat menghapus baris dari tabel.• Referensi: Penerima hibah diperbolehkan untuk menetapkan kunci asing lain meja yangmerujuk pada kolom tertentu.Perintah mencabut memiliki sintaks berikut:MENCABUT {hak | peran}[ON tabel]DARI {pengguna | peran | UMUM}Justru itu, pernyataan berikut mencabut hak akses dari contoh sebelumnya:MENCABUT pilih pada setiap meja dari ricflairCascading otorisasiOpsi hibah memungkinkan akses berhak cascade melalui sejumlah pengguna.Kamimempertimbangkan akses khusus yang tepat dan menggambarkan phenomenonin cascade 5.4 gambar.Angka menunjukkan bahwa Ann hibah akses tepat untuk Bob pada waktu t 10 danChris pada waktu t 20. Berasumsi bahwa opsi hibah selalu digunakan. Dengan demikian, Bob dapatuntuk memberikan akses langsung ke David pada t 30. Chris secara berlebihan memberikan hak aksesuntuk David pada t 50. Sementara itu, David hibah hak untuk Ellen, yang pada gilirannya hibah itukepada Jim; dan kemudian David hibah hak untuk Frank.Hanya sebagai pemberian hak cascades dari satu user untuk lain menggunakanOpsi hibah, pencabutan hak juga mengalir. Dengan demikian, jika Annmencabut hak akses kepada Bob dan Chris, maka akses tepat juga dicabutDavid, Ellen, Jim dan Frank. Komplikasi timbul bila pengguna menerimasama akses tepat beberapa kali, seperti yang terjadi dalam kasus David. Anggaplah bahwaBob mencabut hak istimewa dari David. David masih memiliki akses tepat karenaitu diberikan oleh Chris pada t 50. Namun, David diberikan akses keEllen setelah menerima hak, dengan opsi hibah, dari Bob tapi sebelum menerimadari implementasi Chris.Most mendikte bahwa dalam keadaan ini, akses
Sedang diterjemahkan, harap tunggu..
Hasil (Bahasa Indonesia) 2:[Salinan]
Disalin!
OPTION indicates that the grantee can grant this access right to other users, with or
without the grant option.
As a simple example, consider the following statement.
GRANT SELECT ON ANY TABLE TO ricflair
This statement enables user ricflair to query any table in the database.
Different implementations of SQL provide different ranges of access rights.
The following is a typical list:
• Select: Grantee may read entire database; individual tables; or specific
columns in a table.
• Insert: Grantee may insert rows in a table; or insert rows with values for specific
columns in a table.
• Update: Semantics is similar to INSERT.
• Delete: Grantee may delete rows from a table.
• References: Grantee is allowed to define foreign keys in another table that
refer to the specified columns.
The REVOKE command has the following syntax:
REVOKE { privileges | role }
[ON table]
FROM { user | role | PUBLIC }
Thus, the following statement revokes the access rights of the preceding example:
REVOKE SELECT ON ANY TABLE FROM ricflair
Cascading Authorizations
The grant option enables an access right to cascade through a number of users.We
consider a specific access right and illustrate the cascade phenomenonin Figure 5.4 .
The figure indicates that Ann grants the access right to Bob at time t  10 and to
Chris at time t  20. Assume that the grant option is always used. Thus, Bob is able
to grant the access right to David at t  30. Chris redundantly grants the access right
to David at t  50. Meanwhile, David grants the right to Ellen, who in turn grants it
to Jim; and subsequently David grants the right to Frank.
Just as the granting of privileges cascades from one user to another using
the grant option, the revocation of privileges also cascaded. Thus, if Ann
revokes the access right to Bob and Chris, then the access right is also revoked
to David, Ellen, Jim, and Frank. A complication arises when a user receives the
same access right multiple times, as happens in the case of David. Suppose that
Bob revokes the privilege from David. David still has the access right because
it was granted by Chris at t  50. However, David granted the access right to
Ellen after receiving the right, with grant option, from Bob but prior to receiving
it from Chris.Most implementations dictate that in this circumstance, the access
Sedang diterjemahkan, harap tunggu..
 
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