Oracle Analytical Functions Overview
Oracle Analytical Functions Overview is a SQL function in the Oracle Specific category. Oracle analytical functions: RATIO_TO_REPORT (fraction of total), CUME_DIST (cumulative distribution), PERCENT_RANK. The syntax is RATIO_TO_REPORT() / CUME_DIST() / PERCENT_RANK() / NTILE(). It accepts see syntax. It returns analytical result. A close relative is SEQUENCE (Oracle), which oracle: generates sequential numbers. Independent of tables. Accessed via NEXTVAL and CURRVAL. A close relative is ROWNUM / FETCH FIRST, which oracle: ROWNUM assigns sequential numbers to rows. Used for limiting results (pre-12c). A close relative is SYSDATE / CURRENT_DATE, which oracle: returns the current date and time of the database server. More about this category: Oracle-specific features — SEQUENCE, ROWNUM, SYSDATE, CONNECT BY, PL/SQL. Related Oracle Specific entries: SEQUENCE (Oracle), ROWNUM / FETCH FIRST, SYSDATE / CURRENT_DATE, CONNECT BY (Hierarchical), DUAL Table, MERGE INTO (Oracle), FLASHBACK QUERY, WITH FUNCTION (Oracle 12c+).