sql-like

问题 Trying to LEFT JOIN a table with partial string match. I've tried changing the wildcard in the LIKE condition, but it still only searches for the full string. Any suggestions? I've got a list of product abbreviations stored in a table. Would be easier to manage this list with partial matching versus having to spell out every product. Thanks in advance! CREATE TABLE `order` ( order_id INT (11) NOT NULL, shipping_firstname VARCHAR (128) NOT NULL, shipping_lastname VARCHAR (128) NOT NULL );

问题 This question already has answers here : Reference — frequently asked questions about PDO (3 answers) Closed 6 years ago . I have this : $pdo = new PDO('mysql:host=localhost;dbname=mydb', 'user', 'pass'); $max = 10; $min = 0; $q = $_GET['q']; $result = $pdo->prepare("SELECT * FROM fruits WHERE name LIKE ? LIMIT ?, ?"); $result->execute(array('%'.$q.'%', $min, $max)); However it doesn't work (returns nothing) while when I replace LIMIT by LIMIT 0, 10 and remove $min and $max from the array it

问题 This question already has answers here : Reference — frequently asked questions about PDO (3 answers) Closed 6 years ago . I have this : $pdo = new PDO('mysql:host=localhost;dbname=mydb', 'user', 'pass'); $max = 10; $min = 0; $q = $_GET['q']; $result = $pdo->prepare("SELECT * FROM fruits WHERE name LIKE ? LIMIT ?, ?"); $result->execute(array('%'.$q.'%', $min, $max)); However it doesn't work (returns nothing) while when I replace LIMIT by LIMIT 0, 10 and remove $min and $max from the array it

问题 This question already has answers here : Reference — frequently asked questions about PDO (3 answers) Closed 6 years ago . I have this : $pdo = new PDO('mysql:host=localhost;dbname=mydb', 'user', 'pass'); $max = 10; $min = 0; $q = $_GET['q']; $result = $pdo->prepare("SELECT * FROM fruits WHERE name LIKE ? LIMIT ?, ?"); $result->execute(array('%'.$q.'%', $min, $max)); However it doesn't work (returns nothing) while when I replace LIMIT by LIMIT 0, 10 and remove $min and $max from the array it

问题 Depending on the search pattern I need to get the data displayed from the server. include("dbconfig.php"); $sql="select * from blog where title LIKE '{$title}%'"; $res=mysql_query($sql); while($row=mysql_fetch_array($res)) { echo"<tr>"; echo"<td><img src='uploads/".$row['file']."' height='150px' width='200px'</td>"; echo"<td><h3>".$row['title']."</h3>".$row['description']."</td>"; echo"</tr>"; } 回答1: Here is a complete rewrite that implements mysqli as commented under the question. For

问题 I just find mysql can query datetime using like: like '2013-06-12%' I think it can not use the index. I Google it, but can not find such subject directly. So I have a test using a table with 3308614 records. The first SQL: SELECT * FROM subscription t WHERE DATE(t.active_time) = '2013-06-30'; All we know this SQL can not use the index and it takes 4 seconds to get the result. The second SQL: SELECT * FROM subscription t WHERE t.active_time LIKE '2013-06-30%'; I don't know if it can use the

问题 I currently have the following code select * FROM list WHERE name LIKE '___' ORDER BY name; I am trying to get it so that it only shows names with three or more words. It only displays names with three characters I cannot seem to work out the correct syntax for this. Any help is appreciated Thankyou 回答1: If you assume that there are no double spaces, you can do: WHERE name like '% % %' To get names with three or more words. If you can have double spaces (or other punctuation), then you are

问题 I have a table with 4 entries. CREATE TABLE tab( name Text ); INSERT INTO "tab" VALUES('Intertek'); INSERT INTO "tab" VALUES('Pntertek'); INSERT INTO "tab" VALUES('Ontertek'); INSERT INTO "tab" VALUES('ZTPay'); Pntertek & Ontertek are fuzzy duplicates of the correctly spelt Intertek. I wish to create a list consisting of fuzzy duplicates and the correctly spelt names. However, I don't want the list to contain the correctly spelt name if there is no fuzzy duplicate found by the LIKE search.

问题 Could someone explain such a big performance difference between these SQLs ? SELECT count(*) as cnt FROM table WHERE name ~ '\*{3}'; -- Total runtime 12.000 - 18.000 ms SELECT count(*) as cnt FROM table WHERE name ~ '\*\*\*'; -- Total runtime 12.000 - 18.000 ms SELECT count(*) as cnt FROM table WHERE name LIKE '%***%'; -- Total runtime 5.000 - 7.000 ms As you can see, the difference is more than double between LIKE operator and simple regular expression (I thought LIKE operator internally

问题 Is it possible to perform a request that checks the string representation of a Date instance. For example Restrictions.like("dateField", "%12%") to retrieve dates that either have String 12 in day or 12 in month or 12 in year where "dateField" is an instance of java.util.Date Thanks 回答1: I had the same problem and here's what I did: First, I created my own Criterion implementation: public class DateLikeExpression implements Criterion { private static final long serialVersionUID = 1L; private