| 1234567891011121314151617181920212223 | alter table ACT_HI_TASKINST    add CATEGORY_ nvarchar(255);    drop index ACT_HI_PROCINST.ACT_UNIQ_HI_BUS_KEY;    alter table ACT_HI_VARINST    add CREATE_TIME_ datetime;     alter table ACT_HI_VARINST    add LAST_UPDATED_TIME_ datetime;     alter table ACT_HI_PROCINST    add TENANT_ID_ nvarchar(255) default '';        alter table ACT_HI_ACTINST    add TENANT_ID_ nvarchar(255) default '';     alter table ACT_HI_TASKINST    add TENANT_ID_ nvarchar(255) default '';           alter table ACT_HI_ACTINST    alter column ASSIGNEE_ nvarchar(255);    
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