sqlt-sqlsql-server-ce
Delete specific records on MSSQL
I'm trying to delete specific records from a table using where clause but unable to do so. The command executes successfully but says zeros rows are modified.enter image description here
I'm still in the starting stage of learning SQL. Thanks for helping out
Solution
= NULL never returns true -- almost all comparisons with NULL return NULL, which is treated as false. The correct logic is IS NULL:
delete from Patient
where PatientCountry is null
- Math.Sin() gives incorrect value
- How to run my python script when the sunOS is start booting
- Express-session: not resetting cookie expiration on each request
- Getting a stack overflow exception when normalizing a vector
- Edit default summary function in R gives error for multiple variables
- What was a For loop? Why isn't it needed in R?
- How to use download button in shiny and save results in various formats (csv, texte, pdf, spss...)?
- Why are there two assignment operators, `<-` and `->` in R?
- lm()$assign: what is it?
- How to get the value of list(...) in R and S functions
- Design matrix for MLM from library(lme4) with fixed and random effects
- how to generate elements not included in my sample
- Create a matrix with gradually changing values without a for loop
- Emacs ESS and S-plus ( S+ ) 8.1 compatability
- How to lag date-index in a time-series in R?
- Nonlinear regression in R / S
- Calling R from S-Plus?