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# sql-builder
[](https://travis-ci.org/perdumonocle/sql-builder)
[](https://crates.io/crates/sql-builder)
[](https://docs.rs/sql-builder)
Simple SQL code generator.
## Usage
To use `sql-builder`, add this to your `Cargo.toml`:
```toml
[dependencies]
sql-builder = "3.1"
```
# Examples:
## SELECT
```rust
use sql_builder::SqlBuilder;
let sql = SqlBuilder::select_from("company")
.field("id")
.field("name")
.and_where_gt("salary", 25_000)
.sql()?;
assert_eq!("SELECT id, name FROM company WHERE salary > 25000;", &sql);
```
```rust
use sql_builder::prelude::*;
let sql = SqlBuilder::select_from("company")
.fields(&["id", "name"])
.and_where("salary BETWEEN ? AND ?".binds(&[&10_000, &25_000]))
.and_where("staff BETWEEN ? AND ?".bind(&100).bind(&200))
.sql()?;
assert_eq!("SELECT id, name FROM company WHERE (salary BETWEEN 10000 AND 25000) AND (staff BETWEEN 100 AND 200);", &sql);
```
## INSERT
```rust
use sql_builder::{SqlBuilder, quote};
let sql = SqlBuilder::insert_into("company")
.field("name")
.field("salary")
.field("staff")
.values(&["e("D&G"), &10_000.to_string(), &100.to_string()])
.values(&["e("G&D"), &25_000.to_string(), &200.to_string()])
.sql()?;
assert_eq!("INSERT INTO company (name, salary, staff) VALUES ('D&G', 10000, 100), ('G&D', 25000, 200);", &sql);
```
```rust
use sql_builder::prelude::*;
let sql = SqlBuilder::insert_into("company")
.field("name")
.field("salary")
.field("staff")
.values(&["$1, ?, ?"])
.values(&["$2, ?, ?"])
.sql()?
.bind_nums(&[&"D&G", &"G&D"])
.binds(&[&10_000, &100]);
assert_eq!("INSERT INTO company (name, salary, staff) VALUES ('D&G', 10000, 100), ('G&D', 10000, 100);", &sql);
```
## UPDATE
```rust
use sql_builder::SqlBuilder;
let sql = SqlBuilder::update_table("company")
.set("salary", "salary + 100")
.and_where_lt("salary", 1_000)
.sql()?;
assert_eq!("UPDATE company SET salary = salary + 100 WHERE salary < 1000;", &sql);
```
```rust
use sql_builder::prelude::*;
let sql = SqlBuilder::update_table("company")
.set("salary", "salary + $1")
.set("comment", "e("up $1$$"))
.and_where("salary < ?".bind(&1_000))
.sql()?
.bind_nums(&[&100]);
assert_eq!("UPDATE company SET salary = salary + 100, comment = 'up 100$' WHERE salary < 1000;", &sql);
```
## DELETE
```rust
use sql_builder::SqlBuilder;
let sql = SqlBuilder::delete_from("company")
.or_where_lt("salary", 1_000)
.or_where_gt("salary", 25_000)
.sql()?;
assert_eq!("DELETE FROM company WHERE salary < 1000 OR salary > 25000;", &sql);
```
```rust
use sql_builder::prelude::*;
use std::collections::HashMap;
let mut names: HashMap<&str, &dyn SqlArg> = HashMap::new();
names.insert("min", &1_000);
names.insert("max", &25_000);
let sql = SqlBuilder::delete_from("company")
.and_where("salary >= :min:")
.and_where("salary <= :max:")
.sql()?
.bind_names(&names);
assert_eq!("DELETE FROM company WHERE (salary >= 1000) AND (salary <= 25000);", &sql);
```
See [more examples](https://docs.rs/sql-builder/3.1.1/sql_builder/struct.SqlBuilder.html)
## SQL support
### Statements
- SELECT
- INSERT
- UPDATE
- DELETE
### Operations
- join
- distinct
- group by
- order by
- where
- union
- limit, offset
- subquery
### Functions
- escape
- quote, double quote, back quote, brackets quote
- bind, binds, bind\_num, bind\_nums, bind\_name, bind\_names
### Macroes
- name, qname, baname, brname, dname
## License
This project is licensed under the [MIT license](LICENSE).
|
