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STRING_SPLIT function |
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The STRING_SPLIT function performs the inverse operation of STRING_AGG. It takes a character string and breaks it up into substrings using the separator symbol passed to it as the second argument. These substrings form a one-column table. The single column of this table can be referred to as value.
In fact, the STRING_SPLIT function acts as a non-standard single-column table value constructor. The standard alternative looks as follows: 
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A more interesting case is passing the value of a column of a table to the function. For instance, let’s assume we have to break up the multi-word names in the Ships table into single words. The following query could be used for that:
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