If i need to just update one column do i have to give other column previous value or i can just give give the column i need to change and not null values to update in database .. here is procedure …
Tag: sql
How to use result of first query in second query where condition?
I have to select two tables data, One is PackageData and another is PackageDataDetails. Here is PackageData is Parent table and PackageDataDetails is child table. See below code: SELECT PD.Id, …
Why query is still so fast when I operate a non-indexing column?
I am learning indexing of database. here are indexings of a table. And this table has 330k records. mysql> show index from employee; +———-+————+————-+————–+———…
How to use LIKE in oracle with PHP
I am trying to use a simple SQL statment with the LIKE operator. This SQL statement works on SQL developer but not when I try it on PHP. SELECT * FROM hotels WHERE lower(name) LIKE ‘%luxury%’; …
how to write group-by query SQL with quantity unit conversion?
Stock Product Quantity Unit ——————————- 001 5 box 001 10 bottle 001 60 gallon Conversion Unit1 Unit2 Rate ———————- …
Best way to do a IIF conditional with subquery
I have a select with subquery inside like SELECT …. , (SELECT TOP 1 [DDC].[ContractedAmount] FROM @CustomersTable AS [DDC] …
How compare NUMBER with ‘TYPE IS TABLE OF NUMBER’?
I have query, where need select ID and name by ID. First I check the ID using the function. In the function, I get several values that need to be compared with the ID. When I make a check it gives …
Error Handling for numbers of delimiters when extracting substrings
Situation: I have a column where each cell can have up to 5 delimiters. However, it’s possible that there are none. Objective: How do i handle errors such as : Invalid length parameter passed to …
Datatables Filter not working when applying SQL Server 2008 pagination code
I have managed to make the pagination work (thanks to @zhorov) but somehow it’s conflicting with the search/filter function. Tried to put each query in each $_post to see if the select query will …
Update table using select and where
I have two tables: table ficha_atendimento int id string cidadaos_cns table cidadaos int id string cns I need do create a column int cidadaos_id on table ficha_atendimento_cidadao and I like to …