You likely will not want to be responsible for implementing these dependencies in your applications. In MySQL, the InnoDB storage engine provides foreign key support. This section describes how to set up InnoDB tables to define foreign keys, and how foreign keys affect the way you use tables. ...
FOREIGN KEY (FsBeruf) REFERENCES Beruf(BerufID) ); And this one: CREATE TABLE Bearbeiter ( BearbeiterID INTEGER NOT NULL AUTO_INCREMENT, Name VARCHAR, PW VARCHAR(32), Admin TINYINT, PRIMARY KEY (BearbeiterID) ); The rest of the tables were created perfectly. ...
NO ACTION, which is a standard SQL keyword, is the default in MySQL 9.2. (Also the same as with InnoDB.) In earlier versions of NDB Cluster, when creating a table with foreign key referencing an index in another table, it sometimes appeared possible to create the foreign key even if ...
In earlier versions of NDB Cluster, when creating a table with foreign key referencing an index in another table, it sometimes appeared possible to create the foreign key even if the order of the columns in the indexes did not match, due to the fact that an appropriate error was not always...
In PostgreSQL 9.1, this feature exists. You can simply add IF NOT EXISTS to the CREATE TABLE statement: CREATETABLEIFNOTEXISTStable_name(column_name data_type); For earlier versions, one workaround is to use a function. But if you are creating a function to create a table if it doesn’...
MySQL UPDATE Example Given below is a sample table created in MySQL. Schema Name:pacific Table Name:employees Column Names: empNum – Holds integer values for the employee number. lastName – Holds varchar values for the last name of the employee. ...
[ERR] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '; SET FOREIGN_KEY_CHECKS = 1' at line 1 一般是脚本编码的问题,ultraedit的UTF8编码是UTF8 BOM,UE编辑器调整为UTF8编码格式后,保存的文件...
This is not creating what I have requested, so is a bug. Were the DDL to fail so that you cannot create DESC indexes, adding in support for DESC indexes would be a feature request, don't you think? So the bug is: DESC indexes created as ASC So the enhancement is: DESC index ...
[错了]- 1064 -你有一个错误在SQL语法;检查符合你的手册MySQL服务器版本使用正确的语法”CJH”附近。”BIS_STOREHOUSE”(“ZTBH“VARCHAR(12)不为空,“CKBH“VARCHAR(15”在线1 [错了]创建表”CJH”。“BIS_STOREHOUSE”(“ZTBH“VARCHAR(12)不为空,“CKBH“VARCHAR(15)不为空,“CKLB“...
Syntax error in sqlPosted by: Pete F Date: January 22, 2011 09:46AM I am trying to execute the following sql create but I am getting a syntax error. What am I doing incorrectly? CREATE TABLE stock.person_group ( person_id INT NOT NULL, group_id INT NOT NULL, PRIMARY KEY(...