postgres create database if not exists
Unlike MySQL et al., PostgreSQL does not support the CREATE ... IF NOT EXISTS syntax for databases. This can be, however, simulate in psql with the -gexec ... ,This occurs if a database with the name specified already exists. ERROR: database path may not contain single quotes. The database location dbpath cannot ...
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 postgres create database if not exists 相關參考資料
"Create database if not exists" in postgres - Stack Overflow
2018年10月1日 — For shell script which creates the database if it does not exist and otherwise just keeps it as it is: psql -U postgres -tc "SELECT 1 FROM ... https://stackoverflow.com Create a database if not exists in PostgreSQL - Zaiste
Unlike MySQL et al., PostgreSQL does not support the CREATE ... IF NOT EXISTS syntax for databases. This can be, however, simulate in psql with the -gexec ... https://zaiste.net Documentation: 7.3: CREATE DATABASE - PostgreSQL
This occurs if a database with the name specified already exists. ERROR: database path may not contain single quotes. The database location dbpath cannot ... https://www.postgresql.org Documentation: 9.2: createdb - PostgreSQL
Specifies the name of the database to connect to when creating the new database. If not specified, the postgres database will be used; if that does not exist (or if it ... https://www.postgresql.org Documentation: 9.5: CREATE DATABASE - PostgreSQL
Errors along the line of "could not initialize database directory" are most likely related ... CREATE DATABASE will fail if any other connection exists when it starts; ... https://www.postgresql.org Postgres database create if not exists - Stack Overflow
2013年10月13日 — No but you could query the pg_catalog.pg_database table to see if it exists. https://stackoverflow.com python Postgresql CREATE DATABASE IF NOT EXISTS is error
2017年6月13日 — Postgres does not support the condition IF NOT EXISTS in the CREATE DATABASE clause, however, IF EXISTS is supported on DROP ... https://stackoverflow.com Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
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