唯一性约束的左侧部分。
简单的例子比如典型的名称唯一性约束、类型检查或非空检查。
Simple examples include the typical name-uniqueness constraints, type checks or non-nullness.
我有一个表，我想分区，但我不知道如何处理的唯一性约束。
I have a table that I would like to partition, but I don't know how to deal with the uniqueness constraints.
tabconst为每个唯一性(U)、主键(p)、外键(f)或者表检查(K)约束保持一个行db2select constname,tabname,typefrom syscat . tabconst。
Syscat.tabconst Contains a row for each unique (u), primary key (p), foreign key (f), or table check (k) constraint db2 select constname, tabname, type from syscat.tabconst.
TABLESKEYUNIQUE该表所定义的唯一性（与主键不同）约束的数量db2 "select tabname, keyunique from syscat.tables where keyunique > 0"
SYSCAT.TABLES KEYUNIQUE Number of unique constraints (other than primary key) defined on this table db2 "select tabname, keyunique from syscat.tables where keyunique > 0"
从 道德整合的特征来看，它呈现出强渗透性与弱约束性、提升性与开放性、前进性与上升性以及目标的明确性与唯一性。
Moral integration has the features of strong permeability and weak restriction, promotion and openness, progressness and ascent and clearness and singleness of the object.
从 道德整合的特征来看，它呈现出强渗透性与弱约束性、提升性与开放性、前进性与上升性以及目标的明确性与唯一性。
Moral integration has the features of strong permeability and weak restriction, promotion and openness, progressness and ascent and clearness and singleness of the object.
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