大约有 9,000 项符合查询结果（耗时：0.0187秒） [XML]
Possible to perform cross-database queries with PostgreSQL?
...sult ), but is there anyway to perform a cross-database query using PostgreSQL?
8 Answers
...
How can I get dict from sqlite query?
...
You could use row_factory, as in the example in the docs:
import sqlite3
def dict_factory(cursor, row):
d = {}
for idx, col in enumerate(cursor.description):
d[col[0]] = row[idx]
return d
con = sqlite3.connect(":memory:")
con.row_factory = dict_factory
cur = con.curso...
Count Rows in Doctrine QueryBuilder
...duces additional query like SELECT COUNT(*) AS dctrn_count FROM (_ORIGINAL_SQL_) dctrn_result) dctrn_table which is actually nothing special but well known COUNT(*) solution
– Vladyslav Kolesov
Feb 23 '16 at 17:32
...
Hibernate SessionFactory vs. JPA EntityManagerFactory
...The Session and the `EntityManager translate entity state transitions into SQL statements, like SELECT, INSERT, UPDATE, and DELETE.
Hibernate vs. JPA bootstrap
When bootstrapping a JPA or Hibernate application, you have two choices:
You can bootstrap via the Hibernate native mechanism, and creat...
MySQL error 1449: The user specified as a definer does not exist
...r is a more little tricky:
How to change the definer for views
Run this SQL to generate the necessary ALTER statements
SELECT CONCAT("ALTER DEFINER=`youruser`@`host` VIEW ",
table_name, " AS ", view_definition, ";")
FROM information_schema.views
WHERE table_schema='your-database-name';
Copy ...
How do I remove the first characters of a specific column in a table?
In SQL, how can I remove the first 4 characters of values of a specific column in a table? Column name is Student Code and an example value is ABCD123Stu1231 .
I want to remove first 4 chars from my table for all records
...
count (non-blank) lines-of-code in bash
...bb' -prune -o -path './js/3rdparty' -prune -o -print | egrep '\.php|\.as|\.sql|\.css|\.js' | grep -v '\.svn' | xargs cat | sed '/^\s*$/d' | wc -l
The above will give you the total count of lines of code (blank lines removed) for a project (current folder and all subfolders recursively).
In the ab...
Port 80 is being used by SYSTEM (PID 4), what is that?
...
Also, try stopping "SQL Server Reporting Services (MSSQLSERVER)", that apparently defaults to 80. I did that and port 80 freed up. PID identified the culprit as "System", but apparently that System can mean multiple things.
...
How to remove a package in sublime text 2
... "ColorPicker",
"Emmet",
"FileDiffs",
"Format SQL",
"Git",
"Github Tools",
"HTML-CSS-JS Prettify",
"HTML5",
"HTMLBeautify",
"jQuery",
"JsFormat",
"JSHint",
"JsMinifier",
"LiveReload",
...
Which version of PostgreSQL am I running?
...
Run this query from PostgreSQL:
SELECT version();
share
|
improve this answer
|
follow
|
...