SQLite Tutorialand arithmetic operations. Operators are used to specify conditions in an SQLite statement and to serve as conjunctions for multiple conditions in a statement. Arithmetic operators Comparison available in SQLite. Operator Description AND The AND operator allows the existence of multiple conditions in an SQL statement's WHERE clause. BETWEEN The BETWEEN operator is used to search for values BETWEEN, NOT IN, etc. This is negate operator. OR The OR operator is used to combine multiple conditions in an SQL statement's WHERE clause. IS NULL The NULL operator is used to compare a value with0 码力 | 172 页 | 1.27 MB | 1 年前3
Firebird 2.5 Language Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.1.3. Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SQL augments Dynamic SQL to allow compound statements containing local variables, assignments, conditions, loops and other procedural constructs. PSQL corresponds to the Part 4 (SQL/PSM) part of the SQL under migration conditions with Dialect 2. This reference describes the semantics of SQL Dialect 3 unless specified otherwise. Chapter 2. SQL Language Structure 18 2.1.3. Error Conditions Processing of0 码力 | 521 页 | 2.30 MB | 1 年前3
Apache ShardingSphere v5.5.0 documentsmall amount of data and do not need to be sharded. Note: Single tables that meet the following conditions will be automatically loaded: ‐ A single table showing the configuration in rules such as encrypt executing DDL statements through ShardingSphere For other single tables that do not meet the above conditions, ShardingSphere will not automatically load them, and users can configure single table rules as routing For the scenario where the sharded field is not determined by SQL but by other external conditions, you can use SQL Hint to inject the shard value. Example: Conduct database sharding by employee0 码力 | 602 页 | 3.85 MB | 1 年前3
firebird 40 language reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.1.3. Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 4.2.1. Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SQL augments Dynamic SQL to allow compound statements containing local variables, assignments, conditions, loops and other procedural constructs. PSQL corresponds to the Part 4 (SQL/PSM) part of the SQL0 码力 | 778 页 | 3.43 MB | 1 年前3
Apache ShardingSphere 5.4.1 Documentsmall amount of data and do not need to be sharded. Note: Single tables that meet the following conditions will be automatically loaded: ‐ A single table showing the configuration in rules such as encrypt executing DDL statements through ShardingSphere For other single tables that do not meet the above conditions, ShardingSphere will not automatically load them, and users can configure single table rules as routing For the scenario where the sharded field is not determined by SQL but by other external conditions, you can use SQL Hint to inject the shard value. Example: Conduct database sharding by employee0 码力 | 572 页 | 3.73 MB | 1 年前3
Navicat Charts Creator Version 1 User Guide (Windows)
purpose. 2. License Grants The licenses granted in this Section 2 are subject to the terms and conditions set forth in this EULA: a. Subject to Section 2(b), you may install and use the Software on a software which requires notices and/or additional terms and conditions. By accepting this EULA, you are also accepting the additional terms and conditions of the third party software. 9. General No PremiumSoft condition and convert it to ON clause. Group with Bracket Add parentheses to group the selected conditions. Ungroup Remove the parentheses. Set Filter Criteria 50 When retrieving data, you0 码力 | 112 页 | 1.64 MB | 1 年前3
Navicat Charts Viewer Version 1 Linux User Guide
purpose. 2. License Grants The licenses granted in this Section 2 are subject to the terms and conditions set forth in this EULA: a. Subject to Section 2(b), you may install and use the Software on a software which requires notices and/or additional terms and conditions. By accepting this EULA, you are also accepting the additional terms and conditions of the third party software. 9. General No PremiumSoft condition and convert it to ON clause. Group with Bracket Add parentheses to group the selected conditions. Ungroup Remove the parentheses. Set Filter Criteria When retrieving data, you may want0 码力 | 110 页 | 2.28 MB | 1 年前3
Navicat Charts Creator Version 1 User Guide (Mac)
purpose. 2. License Grants The licenses granted in this Section 2 are subject to the terms and conditions set forth in this EULA: a. Subject to Section 2(b), you may install and use the Software on a software which requires notices and/or additional terms and conditions. By accepting this EULA, you are also accepting the additional terms and conditions of the third party software. 9. General No PremiumSoft convert it to ON clause. 49 Group with Bracket Add parentheses to group the selected conditions. Ungroup Remove the parentheses. Set Filter Criteria When retrieving data, you may want0 码力 | 111 页 | 2.34 MB | 1 年前3
TiDB v8.5 DocumentationCoprocessor (PROCESSED_KEYS �→) and request units (RU) as identifying �→ conditions, and puts identified queries into the specified resource �→ group for more precise identification queries, avoiding identification bias when overall performance decreases. You can set multiple conditions simultaneously, and a query is identified as a runaway query if any condition is met. You can performance when querying tables with numerous columns #52112 @Rustin170506 85 • Simplify filter conditions like a = 1 AND (a > 1 OR (a = 1 AND b = 2)) to a �→ = 1 AND b = 2 #56005 @ghazalfamilyusa • Increase0 码力 | 6730 页 | 111.36 MB | 10 月前3
TiDB v8.4 DocumentationCoprocessor (PROCESSED_KEYS �→) and request units (RU) as identifying �→ conditions, and puts identified queries into the specified resource �→ group for more precise identification queries, avoiding identification bias when overall performance decreases. You can set multiple conditions simultaneously, and a query is identified as a runaway query if any condition is met. You can performance when querying tables with numerous columns #52112 @Rustin170506 80 • Simplify filter conditions like a = 1 AND (a > 1 OR (a = 1 AND b = 2)) to a �→ = 1 AND b = 2 #56005 @ghazalfamilyusa • Increase0 码力 | 6705 页 | 110.86 MB | 10 月前3
共 171 条
- 1
- 2
- 3
- 4
- 5
- 6
- 18













