check-constraints
oracle compound Check constraint
Say I want to allow in a table column only strings that begin w开发者_C百科ith a numeral and should not contain \'$\' in it. How would a check constraint on this table look like?Assuming Oracle 10g+,[详细]
2023-02-22 05:04 分类:问答How to reference other tables in check constraints?
I have a table, ProductSupportArticles: ProductSupportArticleID int NOT NULL <primary key> ParentArticleID int NULL[详细]
2023-02-18 19:55 分类:问答How to recheck primary/foreign key constraint for data already in the table in sql server?
I have a table in SQL Server 2005 with a foreign key and开发者_JS百科 it was disable for huge data loading, and then re-enabled:[详细]
2023-02-14 15:38 分类:问答Hibernate non-negative value constraint
I have the table, the snippet below. package test; import javax.persistence.Column; import javax.persistence.Entity;[详细]
2023-02-05 12:18 分类:问答SQL Server 2008: Restrict column value with respect to another column value
I have a table with 2 columns CREATE TABLE mytable ( x int y char(1) ) I would like to enforce constraint on y with respect to the va开发者_如何学JAVAlue of x.[详细]
2023-01-31 05:48 分类:问答Adding an email check constraint in APEX
I\'m fairly new to Oracle and very new to APEX. I\'m trying to add a constraint on a table to validate the email:[详细]
2023-01-30 02:20 分类:问答How can I create a CHECK constraint on a VARCHAR column in SQL Server specifying a minimum data length?
I have a VARCHAR(30) column in a Microsoft SQL Server database. I\'d like to add a CHECK constraint that does not allow a value in the 开发者_开发知识库column to be less than 3 characters. What is the[详细]
2023-01-30 01:00 分类:问答How can I create a CHECK constraint on a VARCHAR column in MSSQL specifying a valid set of characters that may appear in the data?
I have a VARCHAR(30) column in a 开发者_C百科Microsoft SQL database representing a username. I\'d like to add a CHECK constraint that allows only a certain range of characters to be used: specifically[详细]
2023-01-30 00:57 分类:问答Check for integrity constraint violation in SQL before deletion
My question is sort of similar to this one I want to check if a DELETE query will fail because of a constraint violation. I\'d like to do this on database level because I think letting it fail and ca[详细]
2023-01-22 18:52 分类:问答Does MySQL support check constraint? [duplicate]
This question already has answers here: CHECK constraint in MySQL is not working (8 answers) Closed 3 years ago.[详细]
2023-01-10 14:15 分类:问答