发明名称 |
Cell-level data access control using user-defined functions |
摘要 |
Access control at the cell level is provided by the use of mask functions. Original queries are modified to contain mask functions for those cells which controlled access in accordance with an access policy is desired. In addition, filter functions are included to eliminate rows according to the access policy
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申请公布号 |
US2003014394(A1) |
申请公布日期 |
2003.01.16 |
申请号 |
US20010816640 |
申请日期 |
2001.03.22 |
申请人 |
FUJIWARA SHINJI;LOCHOWITZ JAMES;KEHRER MICHELLE L. |
发明人 |
FUJIWARA SHINJI;LOCHOWITZ JAMES;KEHRER MICHELLE L. |
分类号 |
G06F17/30;G06F21/00;(IPC1-7):G06F7/00 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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