[BUG] merge sql error, dbType h2, druid-1.2.23, sql : ALTER TABLE IF EXISTS INSTANCE_INFO MODIFY IP CHARACTER VARYING (100) com.alibaba.druid.sql.parser.ParserException: not supported.pos 42, line 1, ...

What Does Data Definition Language Mean? A data definition language (DDL) is a computer language used to create and modify the structure of database objects in a database. These database objects ...

By default, the table name is the name of the POJO. By default, the column name is the name of the property. Hibernate and JPA match the column and property’s data types. However, if you want to ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

Please note that MODIFY in H2 actually works in different ways in compatibility modes that support it. It's much safer not to accept it at all in the Regular mode, because somebody may assume that it ...

With (Memory_Optimized = On; By default, setting the Memory_Optimized option creates a durable table. If you're willing to lose all of your data when SQL Server shuts down you can add a Durability ...

Set (SYSTEM_VERSIONING = ON (HISTORY_TABLE = dbo.SalesOrderHistorical)); Once you've created a temporal table, it does have some restrictions. Some things are taken care of for you: If you alter the ...