Is your SQL drawing a blank? It’s NULL a surprise! The title of this post is a play on words, but very appropriate. We are going to discuss the inconsistent results, as well as performance ...

NULL in SQL is a powerful concept, representing the absence of a value. It’s used when data is unavailable or unknown, but its usage requires careful consideration. The first step is understanding the ...

REM also adjusting and aligning the format of select column in many of sql statements. CREATE TABLESPACE qwz DATAFILE 'C:\APP\ADMINISTRATOR\VIRTUAL\ORADATA\ORA19C\QWZ01.DBF' SIZE 2g; CREATE TEMPORARY ...

SQLITE_ERROR: Cannot add a NOT NULL column with default value NULL #4972 New issue Closed ...