Search results
Results From The WOW.Com Content Network
A database trigger is like a stored procedure that Oracle Database invokes automatically whenever a specified event occurs. It is a named PL/SQL unit that is stored in the database and can be invoked repeatedly. Unlike a stored procedure, you can enable and disable a trigger, but you cannot explicitly invoke it.
Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]
Versions 9, [10] [11] 10g and 11g implement the time-sliced queries in what they call Flashback Queries, using the alternative syntax AS OF TIMESTAMP. [12] Notably both of Oracle's implementations depend on the database's rollback segment and so only allow temporal queries against recent changes which are still being retained for backup.
The XFS filesystem, starting with Linux 5.10, has an optional "big timestamps" feature which extends the timestamp range to the year 2486. [27] While the native APIs of OpenVMS can support timestamps up to 31 July 31086, [28] the C runtime library (CRTL) uses 32-bit integers for time_t. [29]
To restate; every object (P) has a Timestamp (TS), however if transaction T i wants to Write to an object, and the transaction has a Timestamp (TS) that is earlier than the object's current Read Timestamp, TS(T i) < RTS(P), then the transaction is aborted and restarted. (This is because a later transaction already depends on the old value.)
SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...
“Archangel” by Olly Alexander (Years & Years) “When I first heard ‘Archangel’ by Olly Alexander, I felt an bolt of serotonin creep into my bloodstream.
Oracle Database provides information about all of the tables, views, columns, and procedures in a database. This information about information is known as metadata. [1] It is stored in two locations: data dictionary tables (accessed via built-in views) and a metadata registry.