Recent questions tagged SQL

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

sql - Is MySQL LIMIT applied before or after ORDER BY?

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308 views 1 answer

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

sql - Update if different/changed

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306 views 1 answer

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

sql server - How do I execute a stored procedure in a SQL Agent job?

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404 views 1 answer

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

sql - Split string and take last element

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537 views 1 answer

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

sql - Do indexes work with "IN" clause

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302 views 1 answer

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

sql - What is the best way to escape non-format characters in Oracle's to_char?

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495 views 1 answer

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

sql server - Test Column exists, Add Column, and Update Column

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327 views 1 answer

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

sql - Select columnValue if the column exists otherwise null

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613 views 1 answer

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

sql - Referencing outer query's tables in a subquery

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406 views 1 answer

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

sql - what's the escape sequence for hyphen (-) in PostgreSQL

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836 views 1 answer

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

sql - Is there a way to persist a variable across a go?

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503 views 1 answer

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

sql - MySQL Select rows where timestamp column between now and 10 minutes ago

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547 views 1 answer

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

sql - Best way to get the next id number without "identity"

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346 views 1 answer

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

sql - mysql query to select everything except

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411 views 1 answer

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

sql - Postgresql recursive self join

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381 views 1 answer

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

sql server - Missing libtdsodbc.so in freetds-dev - MSSQL on Ubuntu

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492 views 1 answer

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

sql - Order by day_of_week in MySQL

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477 views 1 answer

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

sql server - Where to use Outer Apply

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366 views 1 answer

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

sql server - How to search all text fields in a DB for some substring with T-SQL

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265 views 1 answer

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

sql - SQLite: Preventing Duplicate Rows

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442 views 1 answer

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

sql - Select multiple (non-aggregate function) columns with GROUP BY

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487 views 1 answer

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

sql - Mysql: Swap data for different rows

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439 views 1 answer

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

sql - MySQL: How to SUM() a TIMEDIFF() on a group?

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445 views 1 answer

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

sql - What are the pros and cons of using multi column primary keys?

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310 views 1 answer

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

sql - JOIN three tables

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474 views 1 answer

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

sql server - Using LIKE operator with stored procedure parameters

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507 views 1 answer

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

sql server - Printing Table's structure/schema

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444 views 1 answer

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

sql server 2008 - query optimizer operator choice - nested loops vs hash match (or merge)

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443 views 1 answer

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