大约有 40,000 项符合查询结果(耗时:0.0335秒) [XML]

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How to generate the “create table” sql statement for an existing table in postgreSQL

... text; column_record record; BEGIN FOR column_record IN SELECT b.nspname as schema_name, b.relname as table_name, a.attname as column_name, pg_catalog.format_type(a.atttypid, a.atttypmod) as column_type, CASE WHEN ...
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MySQL “WITH” clause

... You might be interested in somethinkg like this: select * from ( select * from table ) as Subquery share | improve this answer | follow ...
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How can I make SQL case sensitive string comparison on MySQL?

... @BT To make utf8 column case sensitive you could use bin colation like: SELECT 'email' COLLATE utf8_bin = 'Email' – piotrekkr Apr 23 '13 at 11:43 ...
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MySQL Query GROUP BY day / month / year

... for added clarity in some cases such as where records span several years. SELECT COUNT(event_id), DATE_FORMAT(event_start, '%Y/%m') – Ric Apr 4 '13 at 10:25 ...
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How to use GROUP_CONCAT in a CONCAT in MySQL

... select id, group_concat(`Name` separator ',') as `ColumnName` from ( select id, concat(`Name`, ':', group_concat(`Value` separator ',')) as `Name` from mytbl group by id, `Name` ) tbl group by id; ...
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How to set the first option on a select box using jQuery?

I have two HTML select boxes. I need to reset one select box when I make a selection in another. 17 Answers ...
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Cannot ping AWS EC2 instance

...ICMP rule Protocol: Echo Request Port: N/A Source: your choice (I would select Anywhere to be able to ping from any machine) share | improve this answer | follow ...
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How to select unique records by SQL

When I perform "SELECT * FROM table" I got results like below: 8 Answers 8 ...
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Find a value anywhere in a database

...OT NULL BEGIN SET @ColumnName = '' SET @TableName = ( SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) &...
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INSERT INTO … SELECT FROM … ON DUPLICATE KEY UPDATE

...olumns named in the INSERT INTO clause, and the second part references the SELECT columns. INSERT INTO lee(exp_id, created_by, location, animal, starttime, endtime, entct, inact, inadur, inadist, smlct, smldur, smldist, larct, lardur, lardist, ...