| 12345678910111213141516171819202122232425262728 | alter table ACT_HI_DETAIL add DUE_DATE_ TIMESTAMP(6);alter table ACT_HI_TASKINST add DUE_DATE_ TIMESTAMP(6);create table ACT_HI_COMMENT (    ID_ NVARCHAR2(64) not null,    TIME_ TIMESTAMP(6) not null,    USER_ID_ NVARCHAR2(255),    TASK_ID_ NVARCHAR2(64),    PROC_INST_ID_ NVARCHAR2(64),    MESSAGE_ NVARCHAR2(255),    primary key (ID_));create table ACT_HI_ATTACHMENT (    ID_ NVARCHAR2(64) not null,    REV_ integer,    NAME_ NVARCHAR2(255),    DESCRIPTION_ NVARCHAR2(255),    TYPE_ NVARCHAR2(255),    TASK_ID_ NVARCHAR2(64),    PROC_INST_ID_ NVARCHAR2(64),    URL_ NVARCHAR2(255),    CONTENT_ID_ NVARCHAR2(64),    primary key (ID_));
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