WebMar 21, 2024 · SQL SEQUENCES. Sequence is a set of integers 1, 2, 3, … that are generated and supported by some database systems to produce unique values on demand. A sequence is a user defined schema bound object that generates a sequence of numeric values. Sequences are frequently used in many databases because many applications … WebThe data can be ordered either in ascending or descending way. Most of the time, the ORDER BY function is used when using the aggregate functions of SQL Whenever we do not specify the type of the order that is ascending or descending then by default the data is being ordered in ascending way.
SQL DESC - W3School
WebApr 5, 2024 · Domain Types. There are three basic domain types. Single Column Domain. Multi Column Domain. Flexible Domain. These are made up of several domain-specific expressions and conditions. Simple Domain Expression : This can be a string, number, sequence.CURRVAL, sequence.NEXTVAL, NULL, or schema.domain. WebOracle. Use NULLS FIRST or NULLS LAST with the SEND-SQL-STATEMENT. If the null ordering is not specified then the handling of the null values is: NULLS LAST if the sort is ASC. NULLS FIRST if the sort is DESC. If neither ascending nor descending order is specified, and the null ordering is also not specified, then both defaults are used and ... portsmouth to london gatwick
DESCRIBE - Oracle
WebApr 10, 2024 · Though all the given answers are correct, But just to give you an oracle specific answer to your question, You can try max function with KEEP predicate -. SELECT MAX(PROJ) KEEP(DENSE_RANK FIRST ORDER BY lookup_PROJ_STATUS_ID DESC) PROJ, MAX(lookup_PROJ_STATUS_ID) lookup_PROJ_STATUS_ID, … WebAug 9, 2010 · DESC [RIBE] (SQL*Plus command) Describe an Oracle Table, View, Synonym, package or Function. Note that because this is a SQL*Plus command you … WebDatabase: Oracle, SQL Server, PostgreSQL. Not: MySQL. ... (PARTITION BY first_name, last_name, created_date ORDER BY ROWID DESC) AS RN FROM all_customer_dupes c ) sub WHERE rn > 1; Instead of saying DELETE FROM all_customer_dupes, I am deleting from the subquery itself. Let’s try to COUNT the number of records. ... oracle bso