查询多个值

Question

我正在尝试按多个值进行过滤，但是似乎无法使and子句起作用（例如filter1和filter 2 ...等）：

向我显示数据库名称正在“测试”的快照

aws rds describe-db-snapshots --include-shared --query 'DBSnapshots[?DBInstanceIdentifier==`testing`].{DBNAME:DBInstanceIdentifier,SNAPSHOT:DBSnapshotIdentifier}'
[
    {
        "SNAPSHOT": "test1",
        "DBNAME": "testing"
    },
    {
        "SNAPSHOT": "test2",
        "DBNAME": "testing"
    },
    {
        "SNAPSHOT": "test3",
        "DBNAME": "testing"
    },
    {
        "SNAPSHOT": "test4",
        "DBNAME": "testing"
    }
]

向我显示名为“ test1”的快照

$ aws rds describe-db-snapshots --include-shared --query 'DBSnapshots[?DBSnapshotIdentifier==`test1`].{DBNAME:DBInstanceIdentifier,SNAPSHOT:DBSnapshotIdentifier}'
[
    {
        "SNAPSHOT": "test1",
        "DBNAME": "testing"
    },
        {
        "SNAPSHOT": "test1",
        "DBNAME": "testing2"
    }
]

向我显示名为test1的数据库测试快照

aws rds describe-db-snapshots --include-shared --query 'DBSnapshots[?DBInstanceIdentifier==`testing`][?DBSnapshotIdentifier==`test1`].{DBNAME:DBInstanceIdentifier,SNAPSHOT:DBSnapshotIdentifier}'
[]

如何做到这一点？

Answer 1

您需要使用AND表达式，这样才能解决问题

$ aws rds describe-db-snapshots --include-shared \
--query 'DBSnapshots[?(DBInstanceIdentifier==`testing` && DBSnapshotIdentifier==`test1`)].{DBNAME:DBInstanceIdentifier,SNAPSHOT:DBSnapshotIdentifier}'