mirror of
https://github.com/hanzoai/sqlbuilder.git
synced 2026-10-01 00:37:42 +00:00
Huan Du
b15ca56b4d
All builders add a new method called SQL to enable us to add any arbitrary SQL when building. It's quite useful when we are using some kinds of extension syntax or add special comments in SQL.
68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
// Copyright 2018 Huan Du. All rights reserved.
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// Licensed under the MIT license that can be found in the LICENSE file.
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package sqlbuilder
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import (
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"fmt"
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)
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func ExampleDeleteFrom() {
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sql := DeleteFrom("demo.user").
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Where(
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"status = 1",
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).
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Limit(10).
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String()
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fmt.Println(sql)
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// Output:
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// DELETE FROM demo.user WHERE status = 1 LIMIT 10
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}
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func ExampleDeleteBuilder() {
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db := NewDeleteBuilder()
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db.DeleteFrom("demo.user")
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db.Where(
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db.GreaterThan("id", 1234),
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db.Like("name", "%Du"),
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db.Or(
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db.IsNull("id_card"),
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db.In("status", 1, 2, 5),
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),
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"modified_at > created_at + "+db.Var(86400), // It's allowed to write arbitrary SQL.
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)
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sql, args := db.Build()
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fmt.Println(sql)
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fmt.Println(args)
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// Output:
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// DELETE FROM demo.user WHERE id > ? AND name LIKE ? AND (id_card IS NULL OR status IN (?, ?, ?)) AND modified_at > created_at + ?
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// [1234 %Du 1 2 5 86400]
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}
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func ExampleDeleteBuilder_SQL() {
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db := NewDeleteBuilder()
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db.SQL(`/* before */`)
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db.DeleteFrom("demo.user")
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db.SQL("PARTITION (p0)")
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db.Where(
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db.GreaterThan("id", 1234),
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)
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db.SQL("/* after where */")
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db.OrderBy("id")
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db.SQL("/* after order by */")
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db.Limit(10)
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db.SQL("/* after limit */")
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sql, args := db.Build()
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fmt.Println(sql)
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fmt.Println(args)
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// Output:
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// /* before */ DELETE FROM demo.user PARTITION (p0) WHERE id > ? /* after where */ ORDER BY id /* after order by */ LIMIT 10 /* after limit */
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// [1234]
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}
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