Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind MS Access InstrRev() Function?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Fill blank
Complete the missing token from the example code.
___ InstrRev("Customer", "t") AS3Order
Put the learning moves in the order that makes the concept easiest to apply.
Search for "t" in string "Customer" (start from the end of the string) and return position:
Definition and Usage
MS Access InstrRev() Function
Example
Search for "t" in string "Customer" (start from the end of the string) and return position:
SELECT InstrRev("Customer", "t") AS
MatchPosition;Definition and Usage
The InstrRev() function gets the position of the first occurrence of a string in another, from the end of string.
This function performs a case-insensitive search.
Syntax
InstrRev(
string1
,
string2
,
start
,
compare
)Parameter Values
| Parameter | Description |
|---|---|
| string1 | Required. The string to be searched |
| string2 | Required. The string to search for |
| start | Optional. The start position for the search. Position -1 is default (which means that it starts with the last character position) |
| compare | Optional. The type of string comparison. Possible values: -1: Use the setting of Option Compare 0: Binary comparison 1: Textual comparison 2: Comparison based on info in your database |
Return Values
- If string2 is not found within string1, this function returns 0
- If string2 is zero-length, this function returns the value in the start parameter
- If string1 is zero-length, this function returns 0
- If string1 is null, this function returns null
- If start is > than the length of string2, this function returns 0
Technical Details
| Works in: | From Access 2000 |
|---|