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Adding an identity to an existing column
... )
ON [PRIMARY]
go
SET IDENTITY_INSERT dbo.Tmp_Names ON
go
IF EXISTS ( SELECT *
FROM dbo.Names )
INSERT INTO dbo.Tmp_Names ( Id, Name )
SELECT Id,
Name
FROM dbo.Names TABLOCKX
go
SET IDENTITY_INSERT dbo.Tmp_Names OFF
go
DROP...
How do I skip a match when using Ctrl+D for multiple selections in Sublime Text 2?
...
@Qwerty: Alt+F3 Selects all occurrences.
– Emil Stenström
May 17 '14 at 15:16
16
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How do I spool to a CSV formatted file using SQLPLUS?
...you want for numbers (avoid scientific notation on IDs)
spool myfile.csv
select table_name, tablespace_name
from all_tables
where owner = 'SYS'
and tablespace_name is not null;
Output will be like:
TABLE_PRIVILEGE_MAP ,SYSTEM
SYSTEM_PRIVILEGE_MAP...
How to save an activity state using save instance state?
... usually use this technique to store instance values for your application (selections, unsaved text, etc.).
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jQuery removing '-' character from string
I have a string "-123445". Is it possible to remove the '-' character from the string?
3 Answers
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Spring Boot JPA - configuring auto reconnect
...1.3
spring.datasource.testOnBorrow=true
spring.datasource.validationQuery=SELECT 1
As djxak noted in the comment, 1.4+ defines specific namespaces for the four connections pools Spring Boot supports: tomcat, hikari, dbcp, dbcp2 (dbcp is deprecated as of 1.5). You need to check which connection po...
How to fetch FetchType.LAZY associations with JPA and Hibernate in a Spring Controller
... PersonRepository extends JpaRepository<Person, Long> {
@Query("SELECT p FROM Person p JOIN FETCH p.roles WHERE p.id = (:id)")
public Person findByIdAndFetchRolesEagerly(@Param("id") Long id);
}
This method will use JPQL's fetch join clause to eagerly load the roles association in a...
Hide the cursor of an UITextField
...o that when the user taps the text field, a picker is summoned for them to select an option from.
13 Answers
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How to track down a “double free or corruption” error
...debug it.
#include<stdio.h>
#include<stdlib.h>
int main()
{
char *x = malloc(100);
free(x);
free(x);
return 0;
}
[sand@PS-CNTOS-64-S11 testbox]$ vim t1.c
[sand@PS-CNTOS-64-S11 testbox]$ cc -g t1.c -o t1
[sand@PS-CNTOS-64-S11 testbox]$ ./t1
*** glibc detected *** ./t1: double free ...
OnNotify函数 ON_NOTIFY消息总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，我们实现下自定义notify.
1.定义通知类型:
#define WM_GRID_SELECT_CHANGE(WM_USER + 1)
2.增加消息映射函数，并实现：
afx_msg void OnNotifyGridChanged(NMHDR *pNMHDR, LRESULT *pResult);
3.增加映射对应关系：
ON_NOTIFY(WM_GRID_SELECT_CHANGE, GRIDCTRL_ID, &CContrad...