Can a table have two primary keys Absolutely no, period. The fact that separate unique constraints can be defined does not make them primary keys as well. Similarly, a table could have 999 unique constraints tha
5. Primary keys can be contained in a table only ___? Once Twice Thrice None of the above Answer:A) Once Explanation: Primary keys can be contained in a table only once. Comments and Discussions! Load comments ↻ Recently Published MCQs Satellite...
Incorrect table definition; there can be only one auto column and it must be defined as a key,程序员大本营,技术文章内容聚合第一站。
to access the uefi settings, you usually need to press a specific key or key combination during the computer's startup process. common keys include del, f2, f10, or esc, but it can vary depending on the computer model. you may need to consult your computer's manual or look for on-...
Once that's done you just have to set the type of export you want: TABLE with constraints, VIEW, MVIEW, TABLESPACE, SEQUENCE, INDEXES, TRIGGER, GRANT, FUNCTION, PROCEDURE, PACKAGE, PARTITION, TYPE, INSERT or COPY, FDW, QUERY, KETTLE, SYNONYM. By default Ora2Pg exports to a file that...
Can a [non primary key] be referenced as [foriegn key] in other table? Can a uniqueidentifier have a default value? can I access function on remote server through linked server? Can i call a stored procedure in view?. Can I configure FILESTREAM to use file share? Can I delete NT SERV...
These codes or keys generate the time-based one-time passwords (TOTPs) that are used for authentication.Here's how the process generally works:1. Install the Authenticator app on the device.2. For each account or service that you want to enable 2FA for, you'll ...
(class name is the same as the table name, the Model will Help the camel class name converted to underline the name of the table, attribute the same), @BaseUniqueIndicates the only class attributes (corresponding to A unique attribute in A table, when the primary key used in the table ...
We have a RDS cluster with 2 hosts, since a few days one host has a problem that it can handle 5 users only. Every next user has problems logging in, it...
(using the LSA RPC interface) will resolve the SIDs it can map and send on the remaining unresolved SIDs to a domain controller in the primary domain. The domain controller will resolve additional SIDs to account names from the local database, including SIDs found in SidHistory on a ...