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I have created a new schema for a new PostgreSQL DB that I want to create (IF NOT EXISTS).
What should the file extension be for this document so that I can run it from psql, .dbu or .sql?
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Each PSQL database table is a separate file with a default file extension of . mkd.
PostgreSQL has a CREATE SCHEMA statement that is used to create a new schema in a database. Syntax: CREATE SCHEMA [IF NOT EXISTS] schema_name; Let's analyze the above syntax: First, specify the name of the schema after the CREATE SCHEMA keywords.
Get a list of all the extensions installed on a database by using the \dx command. For example, the output for \dx when run on the Databases for PostgreSQL default database shows the only installed extension.
Schema is a collection of logical structures of data. In PostgreSQL, schema is a named collection of tables, views, functions, constraints, indexes, sequences etc. PostgreSQL supports having multiple schemas in a single database there by letting you namespace different features into different schemas.
.dbu is used as a "Database Utility" file
You need to use .sql
Then from psql you can use something like:
SET search_path = schemaName, something_else; SELECT * FROM tableName; -- schemaName.tableName or something to that effect depending on what you're trying to accomplish...
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