coalesce

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

From Latin coalēscō, from co- + alēscō (“grow up”).

To join into a single mass or whole. The droplets coalesced into a puddle.
To form from different pieces or elements. The puddle coalesced from the droplets as they ran together.
To bond pieces of metal into a continuous whole by liquefying parts of each piece, bringing the liquids into contact, and allowing the combined liquid to solidify.
To merge, to intermingle freely. It was not a wise thing to enter a close clique, my good madam, until you had examined both them and yourself, and considered how far you were likely to coalesce.
To convert a null value to a defined value. You can improve the display by coalescing the ID columns. As I note in Chapter 9, the COALESCE expression takes on the value of the first non-null value in a list of values.