At first, thank you for giving me the easiest way to access to the command line for MySQL. Before that, I opened the command line in Windows and I entered the way to the bin directory and the command to connect to the MySQL Server. ...
When a record in the nodes table is deleted, every corresponding logfile_records record should also be deleted. And that's where the MySQL ON DELETE syntax comes in to play. As you can see from this following line: 1 foreign key (node_id) references nodes(id) on delete cascade, not ...
constraint_name = KeyCol.constraint_name WHERE RefCons.constraint_schema = 'DATABASE_NAME'; Sample result The output of the SQL query: The above SQL script listed all foreign keys in the database, but what if you want to list all foreign keys for a specific table in the MySQL database...
You can always temporarily set the global system variable 'foreign_key_checks" off by command line before running database creating script. See example:http://www.hackyours.com/2014/01/import-mysql-dump-folder-with-script.html [19 May 2016 21:39] De Veloper ...
You can import the backup with the following lines. mysql >use databasename >SET FOREIGN_KEY_CHECKS = 0; >\. sqlscript.sql >SET FOREIGN_KEY_CHECKS = 1; Then your foreign keys will be properly restored. N.b. the fastes way to take a backup is with mysqldump --skip-opt --quick ...
The following query will list out the foreign keys in mysql. It finds it out from the information_schema database. select concat(table_name, '.', column_name) as 'foreign key', concat(referenced_table_name, '.', referenced_column_name) as 'references' from information_schema.key_column_...
First, click theinvoice_itemtable; notice that a red border indicates that this table is selected. Next, click theinvoicetable. This creates a foreign key in theinvoice_itemtable, the table on the“many”side of the relationship. This relationship between the two tables is shown graphically in...
SET FOREIGN_KEY_CHECKS=0; TRUNCATE table1; TRUNCATE table2; SET FOREIGN_KEY_CHECKS=1; 参考-truncate foreign key constrained table 在MYSQL 中为我工作 除了指定的版本,这还有什么问题吗?会推荐使用它,还是完全避免它? @AndyIbanez MySQL 是与 MSSQL 完全不同的产品,而不是不同版本的 MSSQL。
Add this to the 1st line of your sql db dump file:- SET foreign_key_checks = 0; then add this line to the last line in your sql db dump file:- SET foreign_key_checks = 1; Now you may import your sql dump file, and it should have no error by now. Reference: MySQL Doc ...
Hi Vanessa, could you post the SQL that creates your tables (preferably, as little as 2 tables), and explain what foreign key you are trying to create? The easiest way to get to the SQL that creates your tables is by opening a MySQL command line client tool (from the administrator: to...