For special escape characters of sqlite, select * fromtablewherenumberlike % escape... some special characters need to be escaped when the sqlite3 database is searching. The specific escape is as follows:
Special Character escape for sqlite select *
SQLite is a lightweight, design-related database management system for embedded systems. SQLite is a database engine that implements self reliance, pure client, 0 configuration, and supports transactions. it by D. Richard Hipp was first developed
English original: Limits in SQLite
This article defines the limitations of SQLite and how to customize specific applications for these restrictions. The default throttling settings are usually
C usually needs to generate the SQL statement as follows:
Sprintf (SQL, "insert into data (CMD) values (\" % s \ ");", CMD );
When CMD is Echo "AB,
In C, CMD is "Echo \" AB"
The SQL statement is "insert into data (CMD) values (\" Echo \ "AB \");"
ABS (X)
ABS (x) returns the absolute value of x.Abs (x) returns null if X is null.Abs (x) return 0.0 if X is a string or blob of that cannot being converted to a numeric value. If X is the integer-9223372036854775807 then abs (X) throws a
Reprint: http://www.feiesoft.com/00012/
ABS (X)
ABS (x) returns the absolute value of x.Abs (x) returns null if X is null.Abs (x) return 0.0 if X is a string or blob of that cannot being converted to a numeric value. If X is the
A recent C # applet that wants to place the SQLite database on a network share for simultaneous access by multiple clients. It is found that SQLite does not connect to the database on that network location, and if the database is local, everything
The biggest feature of SQLite is that you can save various types of data to any field without worrying about the data type declared by the field.
For example, you can store strings in integer fields, floating point numbers in Boolean fields, or date
For example, in a data table there is a field called
orderis specifically used for sorting, and my statement may have to be written like this.
$sth = $pdo->prepare (' SELECT * FROM table_name ORDER by order ASC '); $sth->execute ();
But because
For example, if an order field exists in a data table and is used for sorting, my statement may need to write {code...} like this ...} however, because order itself is a keyword, the syntax error will be reported during execution. I know that the
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