大约有 37,000 项符合查询结果（耗时：0.0205秒） [XML]
postgresql: INSERT INTO … (SELECT * …)
...connect remote database and fetch result. For example:
psql dbtest
CREATE TABLE tblB (id serial, time integer);
INSERT INTO tblB (time) VALUES (5000), (2000);
psql postgres
CREATE TABLE tblA (id serial, time integer);
INSERT INTO tblA
SELECT id, time
FROM dblink('dbname=dbtest', 'SELECT ...
Insert into a MySQL table or update if exists
I want to add a row to a database table, but if a row exists with the same unique key I want to update the row.
11 Answers
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Best way to work with dates in Android SQLite [closed]
..., use an integer and store in Unix time (seconds since the epoch). Its sortable and usable in ranges and easily converted.
– mikebabcock
Nov 28 '12 at 15:44
21
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Create SQL script that create database and tables
I have a SQL database and tables that I would like to replicate in another SQL Server. I would like to create a SQL script that creates the database and tables in a single script.
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How to get Last record from Sqlite?
I have a one table question_table and one ImageButton ( Back ). I need to get the last inserted record from the database after clicking on the Back .
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SQL Server equivalent to MySQL enum data type?
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Why not use a table that defines valid values, and then use a foreign key constraint instead?
– Elaskanator
Dec 5 '18 at 17:04
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How to write a foreach in SQL Server?
...rforms better than a cursor and is simpler:
DECLARE @PractitionerList TABLE(PracticionerID INT)
DECLARE @PractitionerID INT
INSERT @PractitionerList(PracticionerID)
SELECT PracticionerID
FROM Practitioner
WHILE(1 = 1)
BEGIN
SET @PracticionerID = NULL
S...
1114 (HY000): The table is full
I'm trying to add a row to an InnoDB table with a simply query:
22 Answers
22
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Can we use join for two different database tables?
Can we use the join operation for two tables from different databases? If yes, how do I do it?
2 Answers
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OPTION (RECOMPILE) is Always Faster; Why?
...You hit the nail on the head when you mentioned a query initially run on a table with 10 records, and now the table has millions of records. That was my case exactly. I didn't mention it in the post because I didn't think it mattered. Fascinating stuff. Thanks again.
– Chad Dec...