Search results
Results From The WOW.Com Content Network
SQL-92 was the third revision of the SQL database query language. Unlike SQL-89, it was a major revision of the standard. Aside from a few minor incompatibilities, the SQL-89 standard is forward-compatible with SQL-92. The standard specification itself grew about five times compared to SQL-89.
timestamp: Date/time/time zone moments of arbitrary precision; symbol: Unicode symbolic atoms (aka identifiers) blob: Binary data of user-defined encoding; clob: Text data of user-defined encoding; sexp: Ordered collections of values with application-defined semantics
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]
Generates a more readable output for timestamps in the format YYYYMMDDHHMMSS – as returned by the {{REVISIONTIMESTAMP}} magic word. For example, {{FRTS | 20230501215438}} is output as "2023-05-01 21:54:38". The template is equivalent to using the time function — For example {{#time: Y-m-d H:i:s | {{REVISIONTIMESTAMP}}}} — outputs 2024-02 ...
In this case, if the transaction's timestamp is after the object's read timestamp, the read timestamp is set to the transaction's timestamp. If a transaction wants to write to an object, but the transaction started before the object's read timestamp it means that something has had a look at the object, and we assume it took a copy of the object ...
Human-readable? Supports references? e Schema-IDL? Standard APIs Supports zero-copy operations Apache Arrow: Apache Software Foundation — De facto: Arrow Columnar Format: Yes No Yes Built-in C, C++, C#, Go, Java, JavaScript, Julia, Matlab, Python, R, Ruby, Rust, Swift Yes Apache Avro: Apache Software Foundation — No Apache Avro ...
Major DBMSs, including SQLite, [5] MySQL, [6] Oracle, [7] IBM Db2, [8] Microsoft SQL Server [9] and PostgreSQL [10] support prepared statements. Prepared statements are normally executed through a non-SQL binary protocol for efficiency and protection from SQL injection, but with some DBMSs such as MySQL prepared statements are also available using a SQL syntax for debugging purposes.
In communications messages, a date-time group (DTG) is a set of characters, usually in a prescribed format, used to express the year, the month, the day of the month, the hour of the day, the minute of the hour, and the time zone, if different from Coordinated Universal Time (UTC).