单词 | check constraint | ||||||||||||
释义 | check constraint
更多释义 收起释义 例句释义: 检查约束,检查条件约束,检查限制 1. Note that the check constraint evaluates whether the XML document is validated or not. It does not perform the actual validation. 注意,检查限制计算是否验证了XML文档,它并不执行实际的验证。 www.ibm.com 2. The CHECK constraint being added specifies that there must be at least one row in table CheckTbl. 添加的CHECK约束指定表CheckTbl必须至少包含一行。 technet.microsoft.com 3. If the column does participate in a check constraint, the database server will reject your modification when you try to save your work. 如果该列参与了CHECK约束,则当您试图保存工作结果时,数据库服务器将拒绝您所做的修改。 msdn2.microsoft.com 4. A check constraint is a type of constraint which can be put on a table column at the time of the creation of the table. 检查约束(checkconstraint)是一类可以在创建表时作用到表列的约束。 www.ibm.com 5. Contains entries for each view, rule, default, trigger, CHECK constraint, DEFAULT constraint, and stored procedure within the database. 包含数据库中每个视图、规则、默认值、触发器、CHECK约束、DEFAULT约束和存储过程的项。 technet.microsoft.com 6. You can restrict the values of any column by specifying a CHECK constraint. 可以通过指定CHECK约束来限制任何列的值。 www.ianywhere.com 7. When you generate data for a column that has a check constraint, the operation fails if data is generated that violates the constraint. 为具有CHECK约束的列生成数据时,如果生成的数据违反该约束,则操作将失败。 msdn2.microsoft.com 8. The before trigger and check constraint on a table XML value always ensures that the XML values are valid as per the specified schema. 对一个表XML值应用beforetrigger和检查约束,往往可以确保XML值对于指定模式是有效的。 www.ibm.com 9. The range of values in each member table is enforced by a CHECK constraint on the partitioning column, and ranges cannot overlap. 每个成员表中的值范围通过分区列上的CHECK约束强制执行,并且范围之间不能重叠。 msdn2.microsoft.com 10. A CHECK constraint assigned to a column can ensure that every item in the column meets a particular condition. 为列分配CHECK约束可以确保该列中的每一项都满足特定的条件。 www.ianywhere.com 1. Specifies whether the data in the table is or is not validated against a newly added or re-enabled FOREIGN KEY or CHECK constraint. 指定表中的数据是否用新添加的或重新启用的FOREIGNKEY或CHECK约束进行验证。 msdn2.microsoft.com 2. Show the properties for a selected check constraint in the Properties window. 在“属性”窗口中显示选定CHECK约束的属性。 msdn2.microsoft.com 3. After rebuilding the index, constraints must be manually enabled by using the ALTER TABLE CHECK CONSTRAINT statement. 重新生成索引后,必须使用ALTERTABLECHECKCONSTRAINT语句手动启用约束。 msdn2.microsoft.com 4. The advantage of the input mask over the CHECK constraint is that the logic is applied in the applications. 输入掩码与CHECK约束相比,其优点是在应用程序中应用了逻辑。 msdn2.microsoft.com 5. For CHECK constraint restrictions, see Constraint Requirements earlier in this topic. 有关CHECK约束的限制,请参阅本主题前面的约束要求。 msdn2.microsoft.com 6. The CHECK constraint is perfect for this, as the following table definition shows. CHECK约束非常适合执行此项操作,如以下所示表定义。 blog.sina.com.cn 7. A CHECK constraint or trigger to look for specified values when data is inserted. CHECK约束或触发器中,以在插入数据时查找指定的值。 technet.microsoft.com 8. The check constraint created above always checks that the document is validated according to the customer schema. 上面创建的检查约束总是会检查是否根据customer模式对文档进行了验证。 www.ibm.com 9. The example in Listing 5 shows how a single schema can be specified in a check constraint. 清单5中的例子显示了如何在检查限制中指定一个模式。 www.ibm.com 10. A check constraint specifies the data values or formats that are acceptable in one or more columns in a table. CHECK约束指定表内一列或多列中可接受的数据值或格式。 msdn2.microsoft.com 1. Text of search condition for a check constraint. 检查约束的搜索条件的文本。 msdn2.microsoft.com 2. You might have deleted a record that has a foreign key value related to it, or you might have violated a check constraint. 可能删除了与某个外键值相关的记录,或者违反了CHECK约束。 msdn2.microsoft.com 3. MODIFY column-name CHECK NULL Delete the check constraint for the column. MODIFYcolumn-nameCHECKNULL删除列的检查约束。 www.ianywhere.com 4. The example in Listing 6 shows how multiple schemas can be listed while creating one particular check constraint. 清单6中的例子显示了如何在创建一个特定的检查限制时列出多个模式。 www.ibm.com 5. Select the constraint from the Selected Check Constraint list. 从“选定的CHECK约束”列表中选择约束。 msdn2.microsoft.com 6. The above example creates a check constraint on the column INFO which is of type XML. 以上例子在类型为XML的INFO列上创建了一个检查限制。 www.ibm.com 7. The mechanism, such as the CHECK constraint, can restrict the possible data values by data type, format, or range of values allowed. 这种机制(例如,CHECK约束)可以通过数据类型、格式或允许使用的值范围来限制可能的数据值。 technet.microsoft.com 8. You can create a CHECK constraint with any logical (Boolean) expression that returns TRUE or FALSE based on the logical operators. 可以通过任何基于逻辑运算符返回TRUE或FALSE的逻辑(布尔)表达式创建CHECK约束。 technet.microsoft.com 9. There is also a SQL editor control that contains intellisense capabilities to edit the check constraint expression. 还存在一个包含智能能力的SQL编辑器控件,用于编辑检查约束表达式。 www.ibm.com 10. If the data that is generated does not satisfy a check constraint on a column, the plan fails when you run it. 如果所产生的资料未满足资料行上的检查条件约束,当您执行计划时会失败。 technet.microsoft.com 1. If a CHECK constraint, FOREIGN KEY constraint, or computed columns reference the column changed. CHECK约束、FOREIGNKEY约束或计算列引用了更改后的列。 msdn2.microsoft.com 2. Enable any FOREIGN KEY constraints by using the ALTER TABLE CHECK CONSTRAINT statement. 使用ALTERTABLECHECKCONSTRAINT语句启用任何FOREIGNKEY约束。 msdn2.microsoft.com 3. A CHECK constraint returns TRUE when the condition it is checking is not FALSE for any row in the table. 如果CHECK约束检查的条件对于表中的任何行都不是FALSE,它将返回TRUE。 technet.microsoft.com 4. MTK maps the ENUM data type to VARCHAR(255) with check constraint. MTK将ENUM数据类型映射到带检查约束的VARCHAR(255)。 www.ibm.com 5. You can also apply a single CHECK constraint to multiple columns by creating it at the table level. 还可以通过在表级创建CHECK约束,将一个CHECK约束应用于多个列。 technet.microsoft.com 6. The check constraint will be applied when you save the table or the database diagram. 保存表或数据库关系图后,将应用CHECK约束。 msdn2.microsoft.com 7. If a table that has just been created does not have any rows, any CHECK constraint on this table is considered valid. 如果刚创建的表没有任何行,则此表的任何CHECK约束都视为有效。 technet.microsoft.com 8. If the column that is used in the CHECK constraint is also part of the primary key, the view is updatable. 如果在CHECK约束中使用的列也是主键的一部分,则该视图是可更新的。 www.microsoft.com 9. The InvCtrl table has a CHECK constraint that triggers a 547 error if the QtyInStk column goes below 0. InvCtrl表有一个CHECK约束,如果QtyInStk列低于0,它就会触发547号错误。 technet.microsoft.com 10. When you try to merge at line 21, you get the result 0 rows merged because the check constraint is violated. 当想在第21行进行合并时,会得到结果0rowsmerged因为检查约束发生了冲突。 www.ibm.com 1. One row for each referential or check constraint associated with a table or column 与表或列关联的每个参照约束或检查约束都占一行 www.ianywhere.com 2. Attaching a check constraint to a table to specify the data values that are acceptable in one or more columns 将CHECK约束附加到表以指定一列或多列中可接受的数据值 msdn2.microsoft.com 3. Creating a table with check constraint on an XML column 创建一个XML列包含检查限制的表 www.ibm.com 4. Disable a check constraint when your table is replicated in another database 当在另一个数据库中复制表时禁用CHECK约束 msdn2.microsoft.com 5. Disabling a check constraint when data is added to, updated in, or deleted from a table 当在表中添加、更新或删除数据时禁用CHECK约束 msdn2.microsoft.com 6. A CHECK constraint is used to limit the values that can be placed in a column. CHECK 约束是用来限制可以在一列中的值。 wenwen.soso.com 7. Example of a check constraint check 完整性约束例子 bailaibaiqu.cn 8. Disable a check constraint when data is added to, updated in, or deleted from a table 当向表中添加数据、更新或删除表中数据时,禁用CHECK约束 msdn2.microsoft.com 9. Listing 5. Create check constraint on an XML column 清单5.在XML列上创建检查限制 www.ibm.com 10. Check constraint and view dependency on XML schema 依赖XML模式的检查限制和视图 www.ibm.com 1. To check existing data when creating a check constraint 创建CHECK约束时检查现有数据 msdn2.microsoft.com 2. How to: Attach a New Check Constraint to a Table or Column 如何:将新的CHECK约束附加到表或列 msdn2.microsoft.com |
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