It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
It acts as a wildcard replacing any single character. So say you were looking for all the people called Smith and Smyth. There is one letter different in those names. In order to find both, in the criteria you could put the question mark in the place of the letter that is different like this:
Sm?th
Now anything that starts with Sm and ends with th and has any other letter in the middle would be listed. It would also find any other letters in that position, not just the i and y that are used in those names.
A select query with multiple criteria
A query is a database object that retrieves specific information from a database based on defined criteria. By creating and running a query in Microsoft Access, you can search for specific data, filter results, and generate reports that provide insight into the information stored in the database.
IN a database the criteria is what you want the database to tell you whan you ask it a question (a query) this might be all the people whose last name is SMITH and their home town is in a town starting with the letter E. Therefore critera is SMITH and E
Ctrl - S will save a query.
It is not exclusive to Access. The term query is generally a way to ask a database a question. The term existed before Access was invented. Other examples of where it is used is SQL which stands for Structured Query Language. SQL is used in various database applications, including Microsoft Access. There are variations of how it is used in different applications.
The * symbol is a universal wildcard symbol. In the Access Query By Example Design Pane, the * represents all fields in the table or query.
delete 'Like' from the query/filter
A query is in basic terms a QUESTION. Therefore when you make and run a query in access you are asking it questions to do with the data it has in the dataset. I.e In the last name field you may ask for all people who meet the criteria of SMITH as the last name. Queries can be very complex depending on what youve stored in the database and what your asking of it.
Run the query. If in Design view you can do that by clicking on the red exclamation mark. If you go to the window and open the query directly, it will run.
If the criteria is entered in by the user as the query is run, by prompting the user, then it is a Parameter query. Criteria can also be built direct into the query in which case it is a standard Select query.
Use the YEAR function, which can extract the year of a date. If your field was DOB in the query you'd have MONTH(DOB) in the field row of the query.
Basically a "query" is a way of asking the database a question, i.e. How many people, have a red car. The query is set an can be a one off question or can be a question it is asked regularly. The criteria is in effect the question you want answered i.e. how many people in you database have a red car So in the data base you may have the name, address, car type, car colour. In the colour field you would set the criteria as RED. Then running the query you will get all the cars that are red. If you then placed in the field on the database data about the type of car this could be Sports, saloon, hatchback SUV So you can then ask red in the colour filed of the query and SUV for example in the TYPE field. It is the queries that make the database do its job of reporting back the information.