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What is the easiest way to ignore a JPA field during persistence?
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To ignore a field, annotate it with @Transient so it will not be mapped by hibernate.
but then jackson will not serialize the field when converting to JSON.
If you need mix JPA with JSON(omit by JPA but still include in Jackson) use @JsonInclude :
@JsonInclude()
@Transient
private String token...
How do SQL EXISTS statements work?
... WHERE o.supplier_id = s.supplier_id)
...should hit a division by zero error, but it won't. The WHERE clause is the most important piece of an EXISTS clause.
Also be aware that a JOIN is not a direct replacement for EXISTS, because there will be duplicate parent records if there's more...
Union Vs Concat in Linq
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Union returns Distinct values. By default it will compare references of items. Your items have different references, thus they all are considered different. When you cast to base type X, reference is not changed.
If you will override Equals and GetHashCod...
Find all elements on a page whose element ID contains a certain text using jQuery
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If you're finding by Contains then it'll be like this
$("input[id*='DiscountType']").each(function (i, el) {
//It'll be an array of elements
});
If you're finding by Starts With then it'll be like this
$("input[id^='D...
Select random row from a sqlite table
... at Selecting a Random Row from an SQLite Table
SELECT * FROM table ORDER BY RANDOM() LIMIT 1;
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How to see query history in SQL Server Management Studio
...ommented, it might be helpful to join on sys.dm_exec_query_stats and order by last_execution_time:
SELECT t.[text], s.last_execution_time
FROM sys.dm_exec_cached_plans AS p
INNER JOIN sys.dm_exec_query_stats AS s
ON p.plan_handle = s.plan_handle
CROSS APPLY sys.dm_exec_sql_text(p.plan_handle) AS...
Best practice for nested fragments in Android 4.0, 4.1 (
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The only way I could see this working is by using a CustomLayoutInflater, as you come across the fragment element, you would override the super implementation and try to parse/inflate it yourself. But that will be ALOT of effort, Well out of scope of a StackOverflow...
How to do an update + join in PostgreSQL?
...swered Oct 23 '11 at 22:12
Mark ByersMark Byers
683k155155 gold badges14681468 silver badges13881388 bronze badges
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Delete all Duplicate Rows except for One in MySQL? [duplicate]
...t could have duplicates repeated more than once you will also want a GROUP BY n1.id clause.
– usumoio
Oct 19 '13 at 0:00
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SQL Server: Filter output of sp_who2
...AX),
LOGIN VARCHAR(MAX),
HostName VARCHAR(MAX),
BlkBy VARCHAR(MAX),
DBName VARCHAR(MAX),
Command VARCHAR(MAX),
CPUTime INT,
DiskIO INT,
LastBatch VARCHAR(MAX),
ProgramName VARCHAR(MAX),
SPID_1 INT,
REQUESTID INT
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