NULL vs 0 in SQL — Most Devs Wrong #sqlnull #nullhandling #sqlmistakes #sqltips
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YouTubeTech Nova IQ
NULL vs 0 in SQL — Most Devs Wrong #sqlnull #nullhandling #sqlmistakes #sqltips
NULL is NOT empty. NULL is NOT zero. It's unknown — and that one difference silently breaks your SQL queries every day. In this Short you'll learn the most common NULL handling mistakes in SQL Server: why WHERE col = NULL always returns zero rows, how NULL propagates through arithmetic and string operations, and how to fix it instantly with ...
116 views3 months ago
SQL Null Functions
jom belajar excel, powerbi dan SQL bulan July? boleh guna kod JUNE49 untuk combo 2 kelas to get discount dan JUNE100 untuk combo 3 kelas ya. sesuai untuk semua intern, fresh grad, unemployed, yang menganggur kita akan start belajar dari level basic #dataanalysis #microsoftpowerbi #microsoftexcel #sql #freshgrad #kelasonline
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jom belajar excel, powerbi dan SQL bulan July? boleh guna kod JUNE49 untuk combo 2 kelas to get discount dan JUNE100 untuk combo 3 kelas ya. sesuai untuk semua intern, fresh grad, unemployed, yang menganggur kita akan start belajar dari level basic #dataanalysis #microsoftpowerbi #microsoftexcel #sql #freshgrad #kelasonline
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