大约有 380 项符合查询结果（耗时：0.0191秒） [XML]
How to apply bindValue method in LIMIT clause?
...QL query.
$limit = intval($limit);
$s = $pdo->prepare("SELECT * FROM tbl LIMIT {$limit}");
The casting is important. More commonly you see ->prepare(sprintf("SELECT ... LIMIT %d", $num)) used for such purposes.
If you're not using MySQL, but for example SQLite, or Postgres; you can also c...
How to use GROUP_CONCAT in a CONCAT in MySQL
...oncat(`Name`, ':', group_concat(`Value` separator ',')) as `Name`
from mytbl
group by
id,
`Name`
) tbl
group by id;
You can see it implemented here : Sql Fiddle Demo. Exactly what you need.
Update
Splitting in two steps. First we get a table having all values(comma separated) agains...
How to set Sqlite3 to be case insensitive when string comparing?
...
One thing to note that tripped me up: select * from tbl where firstname='john' and lastname='doe' COLLATE NOCASE will be case insensitive on lastname. To be case insensitive on firstname, write this: select * from tbl where firstname='john' COLLATE NOCASE and lastname='doe'. I...
Copy a table from one database to another in Postgres
...licit about column names (Postgres 9.4) with something like: INSERT INTO l_tbl (l_col1, l_col2, l_col3) SELECT * FROM dblink('dbname=r_db hostaddr=r_ip password=r_pass user=r_usr', 'select r_col1, r_col2, r_col3 from r_tbl where r_col1 between ''2015-10-29'' AND ''201...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
... This example won't compile even if all columns are varchars join T2 in db.tbl2 on new { T1.firstName, T1.secondName } equals new { T2.colFirst, T2.colSecond }. If you change it to this, it will compile however, join T2 in db.tbl2 on new { N1 = T1.firstName, N2 = T1.secondName } equals new { N1 = T...
Setting up foreign keys in phpMyAdmin?
...a new foreign key constraint to a table by using ALTER TABLE:
ALTER TABLE tbl_name
ADD [CONSTRAINT [symbol]] FOREIGN KEY
[index_name] (index_col_name, ...)
REFERENCES tbl_name (index_col_name,...)
[ON DELETE reference_option]
[ON UPDATE reference_option]
On the other hand, if ...
MySQL Select Query - Get only first 10 characters of a value
...
Using the below line
SELECT LEFT(subject , 10) FROM tbl
MySQL Doc.
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Turning a Comma Separated string into individual rows
...nID, Column1, value --Do not change 'value' name. Leave it as it is.
FROM tbl_Sample
CROSS APPLY STRING_SPLIT(Tags, ','); --'Tags' is the name of column containing comma separated values
So we were having this:
tbl_Sample :
ColumnID| Column1 | Tags
--------|-----------|-------------
1 ...
for each loop in Objective-C for accessing NSMutable dictionary
...
Well... objectEnumerator was added in 1994, the for(... in ...) in about 2006, and Blocks were added in 2009. The block form of enumeration is natural fallout.
– bbum
Feb 8 '10 at 4:25
...
Opening port 80 EC2 Amazon web services [closed]
... done this too, and it still doesn't work.
– coolcool1994
Aug 8 '13 at 12:06
6
Also, check your f...