Recent questions tagged database

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

database - Effective strategy for leaving an audit trail/change history for DB applications?

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737 views 1 answer

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

database - Difference between NOW(), SYSDATE() & CURRENT_DATE() in MySQL

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928 views 1 answer

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

database - Difference between a statement and a query in SQL

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733 views 1 answer

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

database - Map items of collection snapshot in Firebase Firestore

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996 views 1 answer

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

database - Row count of a column family in Cassandra

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869 views 1 answer

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

database connection - PostgreSQL: Warning: Console code page (437) differs from Windows code page (1252)

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859 views 1 answer

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

database - Conditional INSERT INTO statement in postgres

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1.0k views 1 answer

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

database - Adding a column as a foreign key gives ERROR column referenced in foreign key constraint does not exist

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922 views 1 answer

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

database - Evaluating HDF5: What limitations/features does HDF5 provide for modelling data?

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702 views 1 answer

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

database - SQL for Opening Hours

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778 views 1 answer

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

database - Primary Key versus Unique Constraint?

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805 views 1 answer

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

database - PGError: ERROR: permission denied for relation (when using Heroku)

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1.1k views 1 answer

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

database - How do I remove keys?

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737 views 1 answer

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

database - One-to many relationships in ER diagram

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804 views 1 answer

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

database - Atomic operations in Django?

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852 views 1 answer

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

database - How to tag a changeset in liquibase to rollback

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1.4k views 1 answer

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

database design - Sql Data Type for Primary Key - SQL Server?

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737 views 1 answer

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

database - What is the biggest ID number that autoincrement can produce in mysql

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836 views 1 answer

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

database - How to remove foreign key constraint in sql server?

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840 views 1 answer

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

database - In a join table, what's the best workaround for Rails' absence of a composite key?

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842 views 1 answer

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

database design - What tag schema(s) are the most efficient/effective?

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1.2k views 1 answer

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

database - Hibernate @OneToMany remove child from list when updating parent

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864 views 1 answer

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

database - How can I add comments in MySQL?

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738 views 1 answer

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

database design - How to understand the 5th Normal Form?

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686 views 1 answer

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

database - MySQL enum vs. set

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985 views 1 answer

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

database design - What is the difference between 3NF and BCNF?

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960 views 1 answer

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

database design - SQL Server: how to constrain a table to contain a single row?

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817 views 1 answer

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

database design - Anatomy of a Distributed System in PHP

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671 views 1 answer

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