大约有 300 项符合查询结果（耗时：0.0226秒） [XML]
1052: Column 'id' in field list is ambiguous
I have 2 tables. tbl_names and tbl_section which has both the id field in them. How do I go about selecting the id field, because I always get this error:
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How to reset postgres' primary key sequence when it falls out of sync?
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The shortest and fastest way:
SELECT setval('tbl_tbl_id_seq', max(tbl_id)) FROM tbl;
tbl_id being the serial column of table tbl, drawing from the sequence tbl_tbl_id_seq (which is the default automatic name).
If you don't know the name of the attached sequence (which ...
Create table using Javascript
...eCreate() {
var body = document.getElementsByTagName('body')[0];
var tbl = document.createElement('table');
tbl.style.width = '100%';
tbl.setAttribute('border', '1');
var tbdy = document.createElement('tbody');
for (var i = 0; i < 3; i++) {
var tr = document.createElement('...
Display / print all rows of a tibble (tbl_df)
tibble (previously tbl_df ) is a version of a data frame created by the dplyr data frame manipulation package in R. It prevents long table outputs when accidentally calling the data frame.
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Duplicating a MySQL table, indices, and data
...OM oldtable;
To copy just structure and data use this one:
CREATE TABLE tbl_new AS SELECT * FROM tbl_old;
I've asked this before:
Copy a MySQL table including indexes
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SQL Server add auto increment primary key to existing table
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by the designer you could set identity (1,1)
right click on tbl => desing => in part left (right click) => properties => in identity columns select #column
Properties
idendtity column
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IDENTITY_INSERT is set to OFF - How to turn it ON?
...f the entire table, as the increment by one works great. In my insert to TBL_Content store procedure I have something like this
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Escaping single quote in PHP when inserting into MySQL [duplicate]
...scape_string requires 2 parameters it says
– coolcool1994
Jun 12 '15 at 3:35
@coolcool1994 - I had this problem, too, ...
How to delete a column from a table in MySQL
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ALTER TABLE tbl_Country DROP COLUMN IsDeleted;
Here's a working example.
Note that the COLUMN keyword is optional, as MySQL will accept just DROP IsDeleted. Also, to drop multiple columns, you have to separate them by commas and inclu...
Draw line in UIView
...ode in Storyboard. It's easier and better.
– coolcool1994
Nov 6 '17 at 6:07
3
@coolcool1994, have...