Recent questions tagged database

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database - Using execSQL for INSERT operation in Android SQLite

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

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1 answer 800 views

database - How do I change a MySQL table to UTF-8?

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

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1 answer 725 views

database - How to get substring in SQLIte?

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

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1 answer 648 views

database - understanding mysql explain

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

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1 answer 754 views

database - Performance of LIKE queries on multmillion row tables, MySQL

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

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database design - What is the recommended equivalent of cascaded delete in MongoDB for N:M relationships?

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

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1 answer 910 views

database - MySQL Workbench drops connection when idle

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

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1 answer 786 views

database - How does MySQL store data

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

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1 answer 736 views

database - how to get current datetime in SQL?

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

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1 answer 735 views

database - Why restrict the length of a password?

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

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1 answer 696 views

database - Basic data storage with Python

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

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1 answer 622 views

database - Why don't you start off with a "single & small" Cassandra server as you usually do it with MySQL?

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

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1 answer 770 views

database - Unable to connect to SQL Server instance remotely

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

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1 answer 877 views

database design - MySQL: bigint Vs int

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

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1 answer 682 views

database design - is my data normalized?

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

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1 answer 932 views

database - How Do I Trim Leading and Trailing Quote from MySQL Row?

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

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1 answer 739 views

database - How to change the output folder for migrations with asp.net Core?

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

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1 answer 922 views

database - Performance of large EAV/open schema systems on SQL Server

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

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1 answer 845 views

database - DAO and JDBC relation?

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

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1 answer 799 views

database - Using map reduce in CouchDB to output fewer rows

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

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1 answer 896 views

database - Tree structure data query in SQL Server

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

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1 answer 708 views

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

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

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1 answer 898 views

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

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

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1 answer 704 views

database - Difference between a statement and a query in SQL

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

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1 answer 964 views

database - Map items of collection snapshot in Firebase Firestore

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

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1 answer 829 views

database - Row count of a column family in Cassandra

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

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1 answer 818 views

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

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

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1 answer 992 views

database - Conditional INSERT INTO statement in postgres

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

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1 answer 875 views

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

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

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1 answer 669 views

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

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

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1 answer 738 views

database - SQL for Opening Hours

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

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1 answer 772 views

database - Primary Key versus Unique Constraint?

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

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1 answer 1.0k views

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

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

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1 answer 693 views

database - How do I remove keys?

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

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1 answer 772 views

database - One-to many relationships in ER diagram

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

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