Recent questions tagged mysql

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Why does STRAIGHT_JOIN so drastically improve this query, and what does it mean when it is written after the SELECT keyword?

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491 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Replace Default Null Values Returned From Left Outer Join

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700 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Implementing the Hacker News ranking algorithm in SQL

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576 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - phpmyadmin "no data received to import" error, how to fix?

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725 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Count distinct values

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683 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Rolling back a failed Rails migration

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562 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Multiple table joins in rails

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696 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - PHP forums - how to cope with unread discussions / topics / posts

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772 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - What is difference between storing data in a blob, vs. storing a pointer to a file?

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411 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Database design for apps using "hashtags"

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850 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Faster way to delete matching rows?

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438 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql is not recognised as an internal or external command,operable program or batch

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587 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Move node in nested set

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465 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Table with 80 million records and adding an index takes more than 18 hours (or forever)! Now what?

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570 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - ERROR: Failed to build gem native extension (mysql2 on rails 3.2.3)

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470 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - How to reset the primary key of a table?

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589 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Size for storing IPv4, IPv6 addresses as a string

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819 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - move rows from one table to another

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661 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - What's the differences between stored procedures, functions and routines?

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506 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - BOOLEAN or TINYINT confusion

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877 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Why does "_" (underscore) match "-" (hyphen)?

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778 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Why is SQLAlchemy count() much slower than the raw query?

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688 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - WooCommerce: Finding the products in database

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567 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Python db-api: fetchone vs fetchmany vs fetchall

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931 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Database Design: inventory and sales system?

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428 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - SQL Query Where Field DOES NOT Contain $x

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621 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - How to count the number of instances of each foreign-key ID in a table?

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558 views 1 answer

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

mysql - Best practices to store CreditCard information into DataBase

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494 views 1 answer

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