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dev:sql:functions:character_length [2010/07/08 21:30] els |
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| ====== Omnidex SQL Function: CHARACTER_LENGTH ====== | ====== Omnidex SQL Function: CHARACTER_LENGTH ====== | ||
| ===== Description ===== | ===== Description ===== | ||
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| CHARACTER_LENGTH should not be confused with $DATA_LENGTH and $COLUMN_LENGTH. $DATA_LENGTH returns the number of characters plus the null-terminator for C STRING datatypes. $COLUMN_LENGTH returns the length of the column as declared in the table. | CHARACTER_LENGTH should not be confused with $DATA_LENGTH and $COLUMN_LENGTH. $DATA_LENGTH returns the number of characters plus the null-terminator for C STRING datatypes. $COLUMN_LENGTH returns the length of the column as declared in the table. | ||
| - | This function returns a 4-byte integer. | + | This function returns an INTEGER datatype. |
| ===== Syntax ===== | ===== Syntax ===== | ||
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| ===== Examples ===== | ===== Examples ===== | ||
| ==== Example 1: Column ==== | ==== Example 1: Column ==== | ||
| - | <code SQL> | + | <code> |
| > select name, character_length(name) len from individuals; | > select name, character_length(name) len from individuals; | ||
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| ==== Example 2: Character Expression ==== | ==== Example 2: Character Expression ==== | ||
| - | <code SQL> | + | <code> |
| > select gender, name, char_length(gender || name) len from individuals; | > select gender, name, char_length(gender || name) len from individuals; | ||
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| </code> | </code> | ||
| + | ====== Additional Resources ====== | ||
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| + | See also: | ||
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