| 释义 |
行约束 以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译 1 [数]?行约束 ... 行有限矩阵 row finite matrix 行约束 row constraint 行运算 row operation ...
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The itemNumber column provides a unique identity for each item (or row) and has an attached column-level constraint that enforces a valid value to always be supplied (NOT NULL). itemNumber 列提供了每个商品（或列）的惟一标识，它上面还有列级约束，强制要求提供正确的值（NOT NULL）。 - 2
Syscat.references Contains a row for each referential constraint db2 select constname, tabname, refkeyname, reftabname, colcount, deleterule, updaterule from syscat.references. references为每个参照约束保持一个行db2 select constname, tabname, refkeyname, reftabname, colcount, deleterule, updaterule from syscat . references。 - 3
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. 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db2 select constname, tabname, type from syscat . tabconst。
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