WP Data Access
  • Download
  • Support
  • Features
  • Pricing
  • Documentation
Select Page
Popular Search formimportsqlqueryexport

WP Data Access

  • Getting started
  • Installation
  • What’s new?
  • Patches
  • Known limitations
  • FAQ

Data Tables

  • Getting Started
  • Creating and publishing
  • Responsive data tables
  • SEO friendly data tables
  • Adding hyperlinks
  • Extension Manager
  • Style Manager
  • Language settings
Styling
  • Style Manager
  • Premium styling
  • Global styling
  • Code Manager Styling
  • Manual styling
  • Styling issues
Filters
  • Static filters
  • Interactive filters
    • URL parameters
    • Search Panes
    • Search Builder
    • Search form
    • Advanced search
    • Geolocation search
Export & other buttons
  • Export to PDF, CSV, Excel, SQL
  • Print & copy buttons
  • Column selection buttons
  • Custom buttons
Advanced features
  • Advanced settings
  • Large tables & performance
  • Progressively SHOW MORE
  • Custom queries
  • Custom Post Types
  • Row grouping
  • Responsive master-detail
  • Master-detail tables
  • Non admin user access
Demos & tutorials
  • Demos
  • Tutorials

Data Apps

  • Data Projects
  • Projects and templates
  • Supported Data Types
  • One-To-Many relationships
  • Many-To-Many relationships
  • Registration page
  • Manage table options
  • Shortcode usage
Project Templates
  • Project Templates
  • Creating templates
  • Table Settings
  • Relationships
  • List Table
  • Data Entry
  • Reconcile
Data Forms
  • Data Forms
  • Overview
  • Project Demo
  • Page Demo
Advanced features
  • Adding filters
  • Custom validation
  • Add less/more button
  • User roles
  • Managing roles and users
  • Advanced table options
  • Advanced lookups
  • Front-end toolbar
  • Transfer to other WP site
Demos & tutorials
  • Demos
  • Tutorials

Data Explorer

  • Getting started
  • Navigation
  • Explore tables & views
  • Manage tables & views
  • Naming conventions
Manage Actions
  • Actions
Manage Settings
  • Settings
  • Table Settings
  • Column Settings
  • Search Settings
  • Geolocation Settings
  • Dynamic Hyperlinks
  • Dashboard Menus
Data Management
  • Import CSV & SQL files
  • Run SQL script files
  • Data Backup
Problems & solutions
  • InnoDB #rows estimation
  • Import file too large
  • Transfer to other WP DB

Remote Databases

  • MySQL | MariaDB
Other DBMS
  • Heterogeneous Connections
  • Using ODBC | JDBC
  • Connect to SQL Server
Premium Data Services
  • Remote wizard
  • START HERE
  • Errors and messages
  • Limitations
  • Tutorials
  • Remote Databases
    • Remote databases
    • SQL Server
    • PostgreSQL
    • Oracle
    • MariaDB | MySQL
    Remote Data Files
    • Remote data files
    • CSV files
    • JSON files
    • MS Access
    • XML files
    • Public URL
    • Synchronization
    Advanced features
    • Performance
    • Indexes

SQL

  • Getting Started
  • Tutorials
  • Visual Query Builder
  • Writing queries
  • Data exchange
  • Stored procedures
  • Database triggers
  • Scheduled queries

Business Intelligence

  • Getting started
  • Dashboards
  • Sharing dashboards
Dashboards Widgets
  • Dashboard Widgets
  • Publication Widget
  • Project Widget
  • Chart Widget
  • Custom Code Widget
  • Database Widget
  • Sharing Widgets

Table Design

  • Getting started
  • Introduction
  • Basic mode

Plugin Settings

  • Getting started
  • Plugin
  • Back-end
  • Front-end
  • Dashboard
  • Data Forms
  • Data Tables
  • Data Backup
  • Uninstall
  • Manage Repository
  • Manage Roles
  • System Info

Code

Shortcodes
  • Overview
  • wpdataaccess
  • wpdadataproject
  • wpdadataforms
  • wpdadiehard
  • wpdageomap
  • wpdawidget
Hooks & filters
  • Overview
  • Hooks
    • Overview
    • wpda_add_search_actions
    • wpda_add_search_filter
    • wpda_before_list_table
    • wpda_after_list_table
    • wpda_wpdataaccess_prepare
    Filters
    • Overview
    • wpda_column_default
    • wpda_before_simple_form
    • wpda_after_simple_form
    • wpda_construct_where_clause
API
  • WP Data Access API
  • Remote database access
  • CRUD Example
  • Extensions
    • Alternative search algorithm
    • Alternative buttons extension
Code Manager
  • Overview
  • Write code
  • Share(d) code

Scheduled queries

Table of Contents
  • Notes
It is possible to use MySQL events to execute queries at regular intervals. Conceptually, this is similar to the Unix crontab and the Windows Task Scheduler. The example below truncates my demo table and adds five rows every 60 seconds.
CREATE EVENT demo_event
	ON SCHEDULE EVERY 60 SECOND DO
BEGIN
	DECLARE i INTEGER;
	SET i = 0;

	TRUNCATE TABLE demo;

	WHILE i < 5 DO
	  INSERT INTO demo VALUES (i);
	  SET i = i + 1;
	END WHILE;
END
/

Notes #

  • The event scheduler needs to run to execute events (check with show processlist)
  • Read more about the MySQL event scheduler
Share This Article :
  • Facebook
  • Twitter
  • LinkedIn
  • Pinterest
Still stuck? How can we help?

How can we help?

Updated on 2022-12-04
Database triggers

Submit a Comment Cancel reply

Your email address will not be published. Required fields are marked *

Table of Contents
  • Notes

Links

Blogs
Tutorials
Demos

Socials

LinkedIn
Twitter

Get in touch

Premium support
Free support forum
Contact us

Resources

WordPress plugin directory
YouTube tutorials

Passionate Programmers B.V. © 2017 - 2023 All rights reserved