triggers

问题 I have a table called teamMembers , this table stores a name and an e-mail address of a person: id INT (UNIQUE, AUTOINCREMENT) name VARCHAR(255) email VARCHAR(255) updated DATETIME created TIMESTAMP I've created my trigger using phpMyAdmin and it looks like this in this export: CREATE TRIGGER teamMembers.updated_updater AFTER UPDATE ON teamMembers FOR EACH ROW BEGIN UPDATE teamMembers SET updated = NOW() WHERE id = OLD.id; END So when I use a query like this: UPDATE teamMembers SET name =

问题 I have a table called teamMembers , this table stores a name and an e-mail address of a person: id INT (UNIQUE, AUTOINCREMENT) name VARCHAR(255) email VARCHAR(255) updated DATETIME created TIMESTAMP I've created my trigger using phpMyAdmin and it looks like this in this export: CREATE TRIGGER teamMembers.updated_updater AFTER UPDATE ON teamMembers FOR EACH ROW BEGIN UPDATE teamMembers SET updated = NOW() WHERE id = OLD.id; END So when I use a query like this: UPDATE teamMembers SET name =

问题 I have a table called teamMembers , this table stores a name and an e-mail address of a person: id INT (UNIQUE, AUTOINCREMENT) name VARCHAR(255) email VARCHAR(255) updated DATETIME created TIMESTAMP I've created my trigger using phpMyAdmin and it looks like this in this export: CREATE TRIGGER teamMembers.updated_updater AFTER UPDATE ON teamMembers FOR EACH ROW BEGIN UPDATE teamMembers SET updated = NOW() WHERE id = OLD.id; END So when I use a query like this: UPDATE teamMembers SET name =

问题 I am setting up first liquibase maven project for a MySQL DB. Been fine up to creating the triggers. I believe it is an issue with liquibase and JDBC not correctly handling a multiple statement SQL, but I cannot figure out what I am missing. Here are my pom dependancies <dependency> <groupId>org.liquibase</groupId> <artifactId>liquibase-parent</artifactId> <version>3.5.3</version> <type>pom</type> </dependency> <dependency> <groupId>org.liquibase</groupId> <artifactId>liquibase-core<

问题 I am setting up first liquibase maven project for a MySQL DB. Been fine up to creating the triggers. I believe it is an issue with liquibase and JDBC not correctly handling a multiple statement SQL, but I cannot figure out what I am missing. Here are my pom dependancies <dependency> <groupId>org.liquibase</groupId> <artifactId>liquibase-parent</artifactId> <version>3.5.3</version> <type>pom</type> </dependency> <dependency> <groupId>org.liquibase</groupId> <artifactId>liquibase-core<

问题 I am setting up first liquibase maven project for a MySQL DB. Been fine up to creating the triggers. I believe it is an issue with liquibase and JDBC not correctly handling a multiple statement SQL, but I cannot figure out what I am missing. Here are my pom dependancies <dependency> <groupId>org.liquibase</groupId> <artifactId>liquibase-parent</artifactId> <version>3.5.3</version> <type>pom</type> </dependency> <dependency> <groupId>org.liquibase</groupId> <artifactId>liquibase-core<

问题 I have the table named EPOCA with this schema: CREATE TABLE EPOCA ( ID INT CONSTRAINT PK_EPOCA PRIMARY KEY, NOME VARCHAR(250), DATE_INITIAL DATE CONSTRAINT NN_EPOCA_DATA_INI NOT NULL, DATE_END DATE, CONSTRAINT CK_EPOCA_DATAS CHECK (DATE_INITIAL < DATE_END) ); And even though I already check if the initial date is smaller then the end date, I need to check that when I insert a new EPOCA the dates I insert will not overlap with any of the present dates. I developed this trigger: CREATE OR

问题 I am trying to fire an onChange event and it is not working. I have the following simple code: function onChange(){ Logger.log("onChange event fired"); } function onEdit(){ Logger.log("onEdit event fired"); } https://developers.google.com/apps-script/understanding_events According the this document, the onChange event should be fired when a row is inserted. It does not get fired. The onEdit function gets fired when you manipulate a cell, but I need an event to be fired when the user inserts a

问题 I am trying to fire an onChange event and it is not working. I have the following simple code: function onChange(){ Logger.log("onChange event fired"); } function onEdit(){ Logger.log("onEdit event fired"); } https://developers.google.com/apps-script/understanding_events According the this document, the onChange event should be fired when a row is inserted. It does not get fired. The onEdit function gets fired when you manipulate a cell, but I need an event to be fired when the user inserts a

问题 I have to solve this exercise about triggers: Consider the following relational database schema used to represent project information: Person (ID, Surname, Name, Nationality) Project (Name, Manager, StartingYear, NumPeopleInvolved, International) Personnel (Project, PersonID) Specify the triggers required in Oracle to maintain the following integrity constraints: a) The number of people involved in a project (attribute NumPeopleInvolved) must be consistent with the number of tuples entered in