Default behavior in mysql on delete [duplicate]

Default behavior in mysql on delete [duplicate]



1.SQL SERVER – Delete Duplicate Records – Rows | Journey ...

Description:01-03-2007 · Following code is useful to delete duplicate
records. The table must have identity column, which will be used to
identify the duplicate records.



2.sql server - Deleting duplicate record from table - SQL ...

Description:I need to delete duplicate rows only from the table, like I
have 3 duplicate rows in the table, my query will delete 2 rows from 3
duplicated rows.



3.MySQL :: MySQL 5.0 Reference Manual :: 13.2.2 DELETE Syntax

Description:The speed of delete operations may also be affected by factors
discussed in Section 8.3.2.3, "Speed of DELETE Statements". In MyISAM
tables, deleted rows are ...



4.mysql - "INSERT IGNORE" vs "INSERT ... ON DUPLICATE KEY ...

Description:Something important to add: When using INSERT IGNORE and you
do have key violations, MySQL does NOT raise a warning! If you try for
instance to insert 100 records at ...



5.MySQL :: MySQL 3.23, 4.0, 4.1 Reference Manual :: 12.2.1 ...

Description:The syntax for multiple-table DELETE statements that use table
aliases changed between MySQL 4.0 and 4.1. In MySQL 4.0, you should use
the true ...



6.FIX: Error message in SQL Server 2008 when you run an ...

Description:Fixes an issue in which you receive an error message in SQL
Server 2008 when you run an INSERT SELECT statement on a table.



7.SQL SERVER – Unique Nonclustered Index Creation with ...

Description:06-01-2010 · 18 thoughts on " SQL SERVER – Unique Nonclustered
Index Creation with IGNORE_DUP_KEY = ON – A Transactional Behavior "



8.DELETE (Transact-SQL)

Description:By default, a DELETE statement always acquires an exclusive
(X) lock on the table it modifies, and holds that lock until the
transaction completes.



9.MySQL Gotchas - sql-info.de

Description:Example 2. NULL and TIMESTAMP. mysql> CREATE TABLE timestamp
(id INT, ts1 TIMESTAMP(8) NOT NULL, ts2 TIMESTAMP(8) ); Query OK, 0 rows
affected (0.00 sec)



10.SQL Grammar

Description:Selects data from a table. DISTINCT filters out duplicate
results while ALL, the default, includes all results. FROM identifies the
table being queried (single table ...