testingh2liquibase

How do I get liquibase to skip table creation if it already exists with liquibase formatted sql?

This is what I have

--preconditions onFail:CONTINUE
--preconditions not tableExists tableName:QRTZ_CALENDARS schemaName:dbo
CREATE TABLE dbo.QRTZ_CALENDARS (
 SCHED_NAME VARCHAR (120)  NOT NULL ,
 CALENDAR_NAME VARCHAR (200)  NOT NULL ,
 CALENDAR IMAGE NOT NULL
) 
GO

Background. I'm using liquibase to setup a h2 database for test cases in java.

Solution

  • At the moment "formatted SQL" changelogs only support the "SQL check" precondition. Example:

    --preconditions onFail:HALT onError:HALT
--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM my_table

    Info source (and updates): https://docs.liquibase.com/concepts/changelogs/preconditions.html

    If more complicated preconditions are required -- one could try moving to a non-SQL Liquibase format, i.e. XML or JSON