Query sqlite db file

Reading comprehension fail Thanks for the only answer that really addressed the question Also, this prints one table name per line, while. H Antony. H 9 9 silver badges 9 9 bronze badges.

There is a command available for this on the SQLite command line:. Eugene Yarmash k 36 36 gold badges silver badges bronze badges. That's not working for me, but I'm not sure where this code is supposed to be run. Luiz Geron Luiz Geron 1, 15 15 silver badges 20 20 bronze badges. This is probably the best way to do it.

This only works if you know the name of the table. You can't use this to get the list of table names. GameLoading GameLoading 6, 2 2 gold badges 32 32 silver badges 57 57 bronze badges. Alix Axel Alix Axel k 87 87 gold badges silver badges bronze badges. As of the latest versions of SQLite 3 you can issue:.

SQLite version 3. Enter ". You are using a version from — pepper. Noah Noah Via a union all , combine all tables into one list. Mrityunjay Singh Mrityunjay Singh 5 5 silver badges 11 11 bronze badges. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually.

Visit chat. Linked See more linked questions. SQLite allows bound parameters to appear in an SQL statement anywhere that a literal value is allowed. Parameters can be either named or unnamed. An unnamed parameter is a single question mark "? Named parameters are a "? This command-line shell leaves unnamed parameters unbound, meaning that they will have a value of an SQL NULL, but named parameters might be assigned values.

And if there is an entry in that table where the key column exactly matches the name of parameter including the initial "? If no entry exists, the parameter defaults to NULL. The temp. Individual applications are expected to implement their own parameter binding.

Note: This command is experimental. It may be removed or the interface modified in incompatible ways at some point in the future. In this context "the right SQL indexes" means those that cause the queries that an application needs to optimize run fast.

For example, consider the following session:. In the above, the user creates the database schema a single table - "x1" , and then uses the ". The user then creates an index with an equivalent schema and runs the analysis on the same query again. This time the shell tool does not recommend any new indexes, and outputs the plan that SQLite will use for the query given the existing indexes.

The functionality described in this section may be integrated into other applications or tools using the SQLite expert extension code.

Database schema which incorporate SQL custom functions made available via the extension load mechanism may need special provision to work with the. Because the feature uses additional connections to implement its functionality, those custom functions must be made available to those additional connections.

Beginning with version 3. Only one database connection is active at a time. The inactive connections are still open but are idle. Each database connection is identified by an integer between 0 and 9.

There can be at most 10 simultaneously open connections. Change to another database connection, creating it if it does not already exist, by typing the ". Close a database connection by typing ". Though the underlying SQLite database connections are completely independent of one another, many of the CLI settings, such as the output format, are shared across all database connections. Thus, change the output mode in one connection will change it in them all.

On the other hand, some dot-commands such as. There are many other dot-commands available in the command-line shell. See the ". One way to use sqlite3 in a shell script is to use "echo" or "cat" to generate a sequence of commands in a file, then invoke sqlite3 while redirecting input from the generated command file.

This works fine and is appropriate in many circumstances. But as an added convenience, sqlite3 allows a single SQL command to be entered on the command line as a second argument after the database name. When the sqlite3 program is launched with two arguments, the second argument is passed to the SQLite library for processing, the query results are printed on standard output in list mode, and the program exits. This mechanism is designed to make sqlite3 easy to use in conjunction with programs like "awk".

SQLite commands are normally terminated by a semicolon. There are many command-line options available to the CLI. Use the --help command-line option to see a list:. The CLI is flexible regarding command-line option formatting. Either one or two leading "-" characters are permitted.

Thus "-box" and "--box" mean the same thing. Command-line options are processed from left to right. Hence a "--box" option will override a prior "--quote" option. Most of the command-line options are self-explanatory, but a few merit additional discussion below. The --safe command-line option attempts to disable all features of the CLI that might cause any changes to the host computer other than changes to the specific database file named on the command-line.

The idea is that if you receive a large SQL script from an unknown or untrusted source, you can run that script to see what it does without risking an exploit by using the --safe option.

The --safe option disables among other things :. Basically, any feature of the CLI that reads or writes from a file on disk other than the main database file is disabled. Suppose you want to run a suspicious script and the script requires a one or two of the features that --safe normally disables.

Or suppose the script needs to load a specific extension. Those specific commands will then be allowed to execute normally, but all other unsafe commands will still be restricted.

The use of ". Therefore, use ". To compile the command-line shell on unix systems and on Windows with MinGW, the usual configure-make command works:. The configure-make works whether you are building from the canonical sources from the source tree, or from an amalgamated bundle. There are few dependencies. When building from canonical sources, a working tclsh is required. If using an amalgamation bundle, all the preprocessing work normally done by tclsh will have already been carried out and only normal build tools are required.

A working zlib compression library is needed in order for the. For correct operation of the. The source code to the sqlite3 command line interface is in a single file named "shell. The shell.

Regenerate shell. Compile the shell. The following additional compile-time options are recommended in order to provide a full-featured command-line shell:. About Documentation Download Support Purchase. Search Documentation Search Changelog. Getting Started.

Double-click Startup On Windows. Special commands to sqlite3 dot-commands. How ZIP archive access is implemented.

Recover Data From a Corrupted Database. Cryptographic Hashes Of Database Content. Working With Multiple Database Connections. Using sqlite3 in a shell script. The --safe command-line option. Bypassing --safe restrictions for specific commands.

Compiling the sqlite3 program from sources. SQLite version 3. Connected to a transient in-memory database. Use ". Manage SQL archives. Default OFF. Show status information about the database. Render database content as SQL. Exit this program with return-code CODE. Suggest indexes for queries.

Default: auto. Show names of indexes. Load an extension library. Set output mode. Close existing database and reopen FILE. Manage SQL parameter bindings. Change the column and row separators. Create or control sessions. Compute a SHA3 hash of database content. Show stats or turn stats on or off.

Output each SQL statement as it is run. Information about the top-level VFS. Print the name of the VFS stack. List files as they are extracted. If this option is passed a non-zero argument, the ". For databases with unusual data distributions, this may lead to better index recommendations, particularly if the application intends to run ANALYZE.

For small databases and modern CPUs, there is usually no reason not to pass "--sample ". However, gathering data distribution statistics can be expensive for large database tables. If the operation is too slow, try passing a smaller value for the --sample option. A new database is created if the file does not previously exist.

Default '' -pagecache SIZE N use N slots of SZ bytes each for page cache memory -quote set output mode to 'quote' -readonly open the database read-only -safe enable safe-mode -separator SEP set output column separator. Even though it may not be possible to attribute the row to a specific database table, it may be part of a tree structure within the database file.

In this case, the root page number of that tree structure is stored in this column. Notice like above, the database source is a directory path:. After failing to adapt this or this to my needs,I finally succeeded using Marcus Mangelsdorf's refinements from here. Not showing his code - it's in the link.

This is easy to set up quickly and will be the basis for a LINQ? Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 4 years, 10 months ago. Active 1 year, 4 months ago. Viewed 39k times. Select Range Selection, Selection. Offset , 1. OpenRecordset strSQL Many thanks in advance.

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