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Clarify that CREATE OR REPLACE DB deletes indexes and constraints as well (#2154) #2160

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Mar 3, 2025
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Clarify that CREATE OR REPLACE DB deletes indexes and constraints as well (#2154) #2160

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15 changes: 15 additions & 0 deletions ...les/ROOT/pages/database-administration/standard-databases/create-databases.adoc
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Expand Up @@ -206,6 +206,21 @@ CREATE OR REPLACE DATABASE customers

This is equivalent to running `DROP DATABASE customers IF EXISTS` followed by `CREATE DATABASE customers`.

Keep in mind that using `CREATE OR REPLACE DATABASE` also removes indexes and constraints.
To preserve them, run the following Cypher commands before the `CREATE OR REPLACE DATABASE` and save their outputs:

[source, cypher]
----
SHOW CONSTRAINTS YIELD createStatement AS statement
----

[source, cypher]
----
SHOW INDEXES YIELD createStatement, owningConstraint
WHERE owningConstraint IS NULL
RETURN createStatement AS statement
----

The behavior of `IF NOT EXISTS` and `OR REPLACE` apply to both standard and composite databases (e.g. a composite database may replace a standard database or another composite database).

[NOTE]
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