notnull

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Select all if parameter is null in stored procedure

I want to create a procedure in SQL Server that will select and join two tables. The parameters @company, @from and @to are always set but @serie_type can be NULL. If @serie_type is not NULL i just wa[详细]

2023-04-06 12:19 分类：问答
Check a record IS NOT NULL in plsql

I have a function which would return a record with type my_table%ROWTYPE, and in t开发者_运维知识库he caller, I could check if the returned record is null, but PL/SQL complains the if-statement that[详细]

2023-03-31 14:53 分类：问答
Select distinct multiple field without NULL

I have a table with Value ID and Value -------------- id | value | -------------- |1 |NULL | --------------[详细]

2023-03-27 00:34 分类：问答
Make a column nullable in DB2 when Data Capture is enabled

I\'m usi开发者_如何转开发ng db2 version 9.7* and it seems impossible to make a NOT NULL column nullable in any straightforward way.[详细]

2023-03-24 21:19 分类：问答
"Cannot insert the value NULL into column" when trying to update a column in SQL

I am trying to update values of a column which is not null using the query below update Bom set CountryCode=[详细]

2023-03-18 16:33 分类：问答
Insert Null value To an inet field in postgresql

I am trying to insert values to a table which contains two columns with inet types. When I try to insert a NULL value to these columns I get an er开发者_如何学编程ror saying[详细]

2023-02-26 20:51 分类：问答
Linq throwing exception when Null is returned to a string - attribute on a class?

I have a Linq query which I am selecting into a string, of course a string can contain null! So is there a way I can throw an exception within my Linq query, if I detect a null?[详细]

2023-02-20 14:49 分类：问答
Insert default value when null is inserted

I have an Oracle database, and a table with several not null columns, all with default values. I would like to use one insert statement for any data I want to insert, and don\'t bother to check if t[详细]

2023-02-18 18:34 分类：问答
MySQL SELECT only not null values

Is it possible to do a select statement that takes only NOT NULL values? Right now I am using this: SELECT * FROM table[详细]

2023-02-16 06:01 分类：问答
Fluent NHibernate - automapping: allow null for single properties

I know this question has been raised in similar form multiple times, but none of the threads could give me the concrete answer to my question.[详细]

2023-01-23 06:41 分类：问答

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notnull

Select all if parameter is null in stored procedure

Check a record IS NOT NULL in plsql

Select distinct multiple field without NULL

Make a column nullable in DB2 when Data Capture is enabled

"Cannot insert the value NULL into column" when trying to update a column in SQL

Insert Null value To an inet field in postgresql

Linq throwing exception when Null is returned to a string - attribute on a class?

Insert default value when null is inserted

MySQL SELECT only not null values

Fluent NHibernate - automapping: allow null for single properties

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