These value then POST by the form and then captured by server script(in this case PHP). The problem is: ALL of this captured blank are actually treated as '' << blank string NOT the actual NULL. SO, if you tried
You need to use parameterized query and pass DBNull.Value as a parameter's value. In that case it will work fine. Here is sample how to use parameterized queries/stored procedures http://support.microsoft.com/kb/308049/en-us V Can use this if v r having Stored Procedure. but i m not...
hi... i want to insert null values in foreign key field in another table. Sp please help me fast. I need it.Please fast Reply Answers (1) When i execute the sql query shows error How to add datetime with Time Format add in sql server 2005 ...
In SQL Server, you can use the CONCAT() function to concatenate string values from expressions or columns containing a NULL. This function takes a list of strings and displays all these values in one string. The function ignores NULL, they are treated as if they were an empty string. Solut...
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Now that I've switched over to parameterized queries, everything is great except along with handling all the special characters that would otherwise disrupt an all text SQL stament, it's handling the word NULL. My code basically does this for every variable used in the entire SQL state...
In addition to ANSI-standard methods, many databases provide their specific functions to handle NULL values. 5.1. MySQL MySQL provides the IFNULL function as a concise alternative to COALESCE: IFNULL(expression, default_value) The IFNULL function evaluates the expression. If it’s NULL, the func...
The issue with NULL values is that not planning for them being included in your query results will lead to problems. How can we deal with detecting NULL values and replacing them with a non-NULL value? Solution COALESCE is one of the tools you have in SQL Server to work with NULL values...
In my attempt to provide flexible code I overlooked the fact that using NULL in the VALUE clause is legal, ok and will work. With imbedded SQL you need to use the host-var ind-var syntax if you ever want to enter a value for that column. Setting the ind-var to -1 will set th...
rows(1,2,3) untill null then assign 2 to rows(5,6) and so on? CREATE TABLE T_REST(ROW_NUMBER INT, VALUE VARCHAR(100)) INSERT INTO T_REST(ROW_NUMBER, VALUE) VALUES(1,'A'); INSERT INTO T_REST(ROW_NUMBER, VALUE) VALUES(2,'B'); ...