Error updating view
Example:mysql If a VIEW is not-updatable because of something in the WHERE clause (use of a function for example) then there's a trick to make it updatable again. This is not-updatable: CREATE OR REPLACE ALGORITHM=MERGE VIEW user1 AS SELECT u1.* FROM users u1 WHERE u1. Deleted=0 -- WITH CHECK OPTION -- not possible; However, by moving the WHERE clause to an INNER JOIN it does work: CREATE OR REPLACE ALGORITHM=MERGE VIEW user1 AS SELECT u1.* FROM users u1 INNER JOIN tradingsystem.users u2 ON u2. There are also certain other constructs that make a view nonupdatable.To be more specific, a view is not updatable if it contains any of the following: .approximated space-time Ordinary Kriging (ASTOK) and temporally corrected Approximated Ordinary Kriging (TCAOK), both of which are inspired by approximated Ordinary Kriging (AOK) but take the temporal lag into consideration.These proposed schemes are compared with AOK and tested in a case study based on Singapore Regional model (SRM) and its coarse version (SRMC), to correct the water level outputs in the whole domain.The study compares the difference of the proposed approaches, and explores their adaptive capabilities by utilizing temporal lag in various manners.
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Although such a view is not insertable, it can be updatable if you update only columns that are not expressions.
Consider this view: PDF (US Ltr) - 38.4Mb PDF (A4) - 38.4Mb PDF (RPM) - 37.8Mb HTML Download (TGZ) - 10.3Mb HTML Download (Zip) - 10.3Mb HTML Download (RPM) - 9.0Mb Man Pages (TGZ) - 197.5Kb Man Pages (Zip) - 306.2Kb Info (Gzip) - 3.5Mb Info (Zip) - 3.5Mb My SQL Backup and Recovery My SQL Globalization My SQL Information Schema My SQL Installation Guide My SQL and Linux/Unix My SQL and OS X My SQL Partitioning My SQL Performance Schema My SQL Replication Using the My SQL Yum Repository My SQL Restrictions and Limitations Security in My SQL My SQL and Solaris Building My SQL from Source Starting and Stopping My SQL My SQL Tutorial My SQL and Windows My SQL NDB Cluster 7.5 My SQL 5.7 Secure Deployment Guide One of the limitations above is that you cannot have duplicate column names.
This does not make sense as you already cannot have duplicate column names. The downside is of course the extra JOIN, but as we're talking about primary keys here that should be pretty quick (eq_ref) or (in my case) be optimized as "const" anyway.
What I think they are trying to convey is this: You cannot have duplicate base columns in the view for it to be insertable. Deleted=0 WITH CHECK OPTION; Not it's perfectly updatable, except trying to change the ID or Deleted field would result in "Error Code: 1369.