WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.hook FROM wp1f_actionscheduler_actions a
JOIN wp1f_actionscheduler_groups g ON g.group_id = a.group_id
WHERE g.slug = 'wp_mail_smtp' AND a.status IN ('in-progress', 'pending')
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INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'wp_mail_smtp_summary_report_email', 'pending', '2026-06-22 11:00:00', '2026-06-22 14:00:00', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1782126000;s:18:\"\0*\0first_timestamp\";i:1782126000;s:13:\"\0*\0recurrence\";i:604800;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1782126000;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:604800;}', 13, 10, '[null]' FROM DUAL
WHERE (
SELECT action_id FROM wp1f_actionscheduler_actions
WHERE status IN ( 'pending', 'in-progress' )
AND hook = 'wp_mail_smtp_summary_report_email'
AND `group_id` = 13
LIMIT 1 ) IS NULL
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WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed]
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'wp_mail_smtp_admin_notifications_update', 'pending', '2026-06-17 13:07:56', '2026-06-17 16:07:56', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1781701676;s:18:\"\0*\0first_timestamp\";i:1781701676;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1781701676;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 13, 10, '[null]' FROM DUAL
WHERE (
SELECT action_id FROM wp1f_actionscheduler_actions
WHERE status IN ( 'pending', 'in-progress' )
AND hook = 'wp_mail_smtp_admin_notifications_update'
AND `group_id` = 13
LIMIT 1 ) IS NULL
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a LEFT JOIN wp1f_actionscheduler_groups g ON g.group_id=a.group_id WHERE 1=1 AND g.slug='aioseo' AND a.hook='aioseo_cache_prune' AND a.args='[]' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
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INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'aioseo_cache_prune', 'pending', '2026-06-17 13:06:56', '2026-06-17 16:06:56', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1781701616;s:18:\"\0*\0first_timestamp\";i:1781701616;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1781701616;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 9, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
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WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a LEFT JOIN wp1f_actionscheduler_groups g ON g.group_id=a.group_id WHERE 1=1 AND g.slug='aioseo' AND a.hook='aioseo_cache_prune' AND a.args='[]' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
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INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'aioseo_cache_prune', 'pending', '2026-06-17 13:06:56', '2026-06-17 16:06:56', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1781701616;s:18:\"\0*\0first_timestamp\";i:1781701616;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1781701616;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 9, 10, '[]' FROM DUAL
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SELECT 'woocommerce_ac_send_email_action', 'pending', '2026-06-17 13:07:56', '2026-06-17 16:07:56', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1781701676;s:18:\"\0*\0first_timestamp\";i:1781701676;s:13:\"\0*\0recurrence\";i:900;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1781701676;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:900;}', 10, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
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Collins Cambridge IGCSE (R) Maths Student’s Book – Third Edition provides in-depth coverage of every aspect of the latest Cambridge IGCSE and IGCSE (9-1) Mathematics (0580/0980) syllabuses, for examination from 2020. The resource covers the Core and Extended curriculum.
Exam Board: Cambridge Assessment International Education
First teaching: 2018 First examination: June 2020
Support and challenge students with the Core curriculum and Extended curriculum together in one book. This also aids transition from Core to Extended.
Help students to prepare for examination with Cambridge questions from previous papers.
Develop problem solving with flagged questions that require students to apply their skills, often in real life, international contexts.
Cover the curriculum with confidence with clear references to what students will learn at the start of every chapter.
See what level students are working at with all questions labelled Core or Extended.
Emphasize the relevance of maths with ‘Why this chapter matters’ showing maths in everyday life or historical development.
Consolidate understanding with tried and tested questions in extensive practice exercises and detailed worked examples.
Deliver a fully international course with international examples, contexts, names, currency and locations.
Encourage students to check their work with answers to all exercise questions at the back of the book. Examination answers are only available in the Teacher’s Pack.
This title is endorsed by Cambridge Assessment International Education.
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