add section on quoted identifiers to doc
Signed-off-by: Gavin King <gavin@hibernate.org>
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@ -494,6 +494,32 @@ Writing your own `PhysicalNamingStrategy` and/or `ImplicitNamingStrategy` is an
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We'll have more to say about them in <<naming-strategies>>.
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We'll have more to say about them in <<naming-strategies>>.
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====
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====
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[[quoted-identifiers]]
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=== Quoting SQL identifiers
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By default, Hibernate never quotes SQL table and column names in generated SQL.
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This behavior is usually much more convenient, especially when working with a legacy schema, since unquoted identifiers aren't case-sensitive, and so Hibernate doesn't need to know or care whether a column is named `NAME`, `name`, or `Name` on the database side.
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The following settings enable automatic quoting:
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.Settings for identifier quoting
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[%breakable,cols="35,~"]
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|===
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| Configuration property name | Purpose
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| `hibernate.auto_quote_keyword` | Automatically quote any identifier which is a SQL keyword
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| `hibernate.globally_quoted_identifiers` | Automatically quote every identifier
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|===
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Note that `hibernate.globally_quoted_identifiers` is a synonym for `<delimited-identifiers/>` in <<configuration-jpa,`persistence.xml`>>.
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We don't recommend the use of global identifier quoting, and in fact these settings are rarely used.
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[TIP]
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====
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A better alternative is to explicitly quote table and column names where necessary, by writing `@Table(name="\"View\")` or `@Column(name="\"number\"")`.
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Since that's kinda ugly, Hibernate lets us use a backtick as the quote character instead of the double quote.
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====
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[[nationalized-chars]]
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[[nationalized-chars]]
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=== Nationalized character data in SQL Server
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=== Nationalized character data in SQL Server
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