大约有 1,959 项符合查询结果(耗时:0.0202秒) [XML]

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PDO get the last ID inserted

... @rybo111, first it's Screaming snake case. second, it's MySQL naming convention and is not PHP – azerafati Jul 23 '15 at 11:56 2 ...
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How does Amazon RDS backup/snapshot actually work?

... We also run several RDS instances, in addition to MySQL on some machines that we manage ourselves. I can't comment specifically, as I'm not an Amazon engineer, but several things I've learned that might explain what you're seeing: Although Amazon does not share the backend...
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How do I return rows with a specific value first?

...L Server, but that's because the syntax is non-standard and only works for MySQL. When using a CASE statement (which is standard SQL) SQL Server can very well use an expression in the ORDER BY clause. "too stupid to process equivalency tests" is simply wrong. If at all it should read: "does not supp...
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How to get the insert ID in JDBC?

... I am correct, Oracle JDBC driver is still somewhat troublesome with this. MySQL and DB2 already supported it for ages. PostgreSQL started to support it not long ago. I can't comment about MSSQL as I've never used it. For Oracle, you can invoke a CallableStatement with a RETURNING clause or a SELEC...
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?

...skipped if it would violate a primary/unique key constraint. For instance, MySQL has INSERT IGNORE . 11 Answers ...
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INSERT … ON DUPLICATE KEY (do nothing)

... uses resources for the second action. Use INSERT IGNORE ..., Negative : MySQL will not show any errors if something goes wrong, so you cannot handle the errors. Use it only if you don’t care about the query. share ...
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“use database_name” command in PostgreSQL

... If I'm not mistaken, databases in MySQL are more akin to schemas in PostgreSQL -- you can switch between those, but DBs in PostgreSQL are a whole different ballgame. – mpen May 10 '12 at 3:40 ...
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How do you do a limit query in JPQL or HQL?

In Hibernate 3, is there a way to do the equivalent of the following MySQL limit in HQL? 14 Answers ...
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How to switch databases in psql?

In MySQL , I used use database_name; 12 Answers 12 ...
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SQL Server - inner join when updating [duplicate]

...it works with UDPATE SET FROM JOIN WHERE? Does it depend on the version of mysql? – Farside Apr 28 '16 at 12:45 6 ...