How avoid updating unnecessary columns in Update statement?
111753
UPDATE performance where no data changes
125581
Re-use aliased field in SQL SELECT statement
100830
How to prevent unnecessary updates
59954
How to compare the old and new values in a trigger for multiple fields?
54371
Specific merge 2 columns in sql excluding one of them
149810
Is there an automatic modification time stamp type for Oracle columns?
3556
Select all columns except one in MySQL?
7770
How can I rewrite this query so as to avoid the error: You can't specify target table for update in FROM clause
67443
How to prevent duplicate records being inserted with SqlBulkCopy when there is no primary key
154568
Optimal way to ignore duplicate inserts?
81827
How to check if a columns value was explicitly specified in a PL/SQL BEFORE UPDATE trigger?
52570
How to do an update + join in PostgreSQL?
122501
Why does upsert cause a DUPLICATE_VALUE error?
121322
How do you drop a default value or similar constraint in T-SQL?
138521
Change column name without recreating the MySQL table
23147
Entity Framework: "Store update, insert, or delete statement affected an unexpected number of rows (0)."
112282
Remove duplicate fields in a given column (after ID check)